Sephiria Weapon Upgrades: Full Enhancement Tree Guide

Learn how Sephiria weapon upgrades work, including the two-stage enhancement system, all weapon types, upgrade effects, and how to obtain them.

Overview

Weapon upgrades in Sephiria let you transform base weapons into specialized tools that support different builds and playstyles. Every weapon can be reinforced up to two times. The second-stage upgrade builds on the first, so the effects of both stages stack.

There are six weapon types in total: standard sword and shield, steel greatsword, dagger, large crossbow, sword (do), and pole. Each type has its own upgrade tree with multiple branches. Some upgrades are designed for specific attribute builds—fire, ice, lightning, or physical—while others focus on mechanics like dash attacks, normal attacks, special attacks, or companion summons.

When you upgrade a weapon, the attack damage calculation can change. Most weapons deal physical damage by default, but certain upgrade paths convert your attacks to be based on a different attribute. For example, the magic wand upgrade changes your sword-and-shield attacks into magical projectiles, and the flame dagger converts your weapon to fire-based damage.

How Weapon Upgrades Work

Each weapon can be reinforced twice. The first upgrade gives you a base enhancement, and the second upgrade adds a more specialized effect. You cannot skip the first stage—the second-stage upgrade is an extension of the first.

Some weapons have dedicated artifacts that only appear when you are holding that weapon type. These artifacts are designed to synergize with specific upgrade paths, so your choice of weapon upgrade influences which artifacts you will encounter during a run.

Damage from weapon attacks is calculated using the attribute damage values shown in your stat window. If a normal attack combo has multiple motions, each motion can have a different damage coefficient. For example, the standard sword and shield attack cycle deals 100%–100%–170% of physical damage across its three hits.

Weapon Upgrade Tables

Standard Sword and Shield

The standard sword and shield is the default weapon. It has a 3-hit basic attack combo, medium attack speed, and decent guard ability. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack (3 hits)	1 / 1 / 1.7
Dash Attack	0.8
Special Attack (Sweep)	2.5
Probabilistic Artifact Activation	100%

Protection

Effect: When a guard is successful, MP consumed for guarding is reduced by 50%.

This upgrade is suited for reflex builds that rely on perfect guards. It also works with companion builds where you hold guard while your companion deals damage.

Secondary Upgrade	Effect
Twinkle of Stars	Reflects 300% of attacker's damage on successful guard (400% on perfect guard)
Cold Anger	Perfect guard amplifies all damage by 20% for 14 seconds
Rock Sword	Special Attack: Sweep changes to Shield Strike, which consumes 10 MP and increases damage by 1% per 2 defense

One Workshop

Effect: Attack speed increases by 15%, and you automatically guard the front when performing a normal attack.

This upgrade adds an automatic guard that blocks a 90-degree range in front of you during normal attacks.

Secondary Upgrade	Effect
Flutter of Ash	Dash attack damage increases by 60%, and dash attacks deal 50% of their damage to the path
Mugowon	Normal attack damage increases by 33%, but Special Attack: Sweep is disabled

Small Destruction

Effect: Special attack damage increases by 40%.

Secondary Upgrade	Effect
A Tightening Fear	Gain 1 stack of Heightened Fear every 3 seconds (max 10); Special Attack: Sweep damage increases by 30% per stack and range by 200%
Guardian of the Return	Special Attack: Sweep changes to Shield Throw, firing 2 shields that deal 125% physical damage each

Carrot Sword

Effect: All attribute damage increases by 3.

Secondary Upgrade	Effect
Carrot Caliber	Normal attack changes to a 5-hit combo with equal damage; additional attack speed effectiveness increases by 20%
Wave Root Sword	All attribute damage increases by 2, and magic book damage increases by 15%

Rapier

Effect: Dash attacks are disabled, and normal attacks change to dash attacks. Attack speed increases by 10%.

Secondary Upgrade	Effect
Rapier of Flash	Sting range is longer; attack speed increases by 20%

Magic Wand

Effect: Weapon attacks change to use magic missiles. This is a ranged upgrade for the sword and shield.

Secondary Upgrade	Effect
Gaze of Flame	Attacks become fire-based; normal attack damage increases by 20%
Breath of Ice	Attacks become ice-based; dash attack damage increases by 40%
Wings of Lightning	Attacks become lightning-based; special attack damage increases by 20%

Frost Shard

Effect: Ice attribute damage increases by 5.

Secondary Upgrade	Effect
Glacial Blade	Increases the charging speed of the barn's sheath
Eve of a Blizzard	When a dash is consumed, activates Blizzard Hammer immediately with 60% damage

Conductor

Effect: Lightning damage increases by 5.

Secondary Upgrade	Effect
Ballista Sword	The mini ballista artifact's arrows penetrate walls and are guided toward enemies; successful guards fire an arrow immediately
Superconductor	Special Attack: Sweep changes to Lightning Spear, which consumes 4 dark clouds to deal 165% lightning damage

Incendium

Effect: Fire attribute damage increases by 5. Added in patch 0.11.0.

Secondary Upgrade	Effect
Solis Mision	Gain the Reignite effect; movement speed while guarding is reduced by 90%. Sun Swords are automatically thrown while guarding during Reignite
Fire-Eating Haitai	Special Attack: Sweep changes to Flame Blast, which removes burn debuffs from targets and gains stacks that add fire damage

Steel Greatsword

The steel greatsword has a 3-hit combo, slow attack speed, high stiffness, and wide attack range. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack (3 hits)	1.75 / 1.75 / 2.5
Dash Attack	1.25
Special Attack (Vortex)	4
Probabilistic Artifact Activation	150%

Hypersensitivity

Effect: Special attack damage increases by 20%, and Vortex charge rate increases by 50%.

Secondary Upgrade	Effect
Ignoring	Special attack damage increases by 15%; Vortex is instantly charged, but special attack speed decreases by 15%
Love's Gaze	Special Attack: Vortex critical chance increases by 50%, and casting speed becomes 50% faster

Gathering Shadows

Effect: Special Attack: Vortex charge time increases by 100%, but normal attack damage increases by 20%.

Secondary Upgrade	Effect
Short Self-Reproach	The last attack of a normal combo can be swung 2 additional times; normal attack damage increases by 10%

Burnt Forged Sword

Effect: Weapon attacks deal additional fire damage equal to 30% of the damage. Added in patch 0.9.6.

Secondary Upgrade	Effect
Crushing of the Red Snake	Red Snake Eyes artifact damage increases by 20%, and normal attack cooldown is reduced by 1.5 seconds
Solis Kineris	Sun Sword stacks are consumed 3 times faster, but damage is tripled and critical damage increases

Wooden Bat

Effect: Normal attack damage increases by 20%, but dash attack damage decreases by 40%.

Secondary Upgrade	Effect
Thorn Bat	Critical hits fire 3 piercing spikes dealing 26% physical damage each; additional spikes added per 20% extra critical damage
Mischief	Critical hit chance decreases by 20%, but weapon damage increases by 25%

Bone Device Sword

Effect: Special Attack: Whirlpool changes to Reassembly, which consumes 25 MP to lengthen the blade for 8 seconds and deal additional damage based on defense.

Secondary Upgrade	Effect
Creaky Spine	Reassembly attack range increases, and attack speed ramps up to 35%
Heretic Questioner	Physical damage becomes chaos-based; Whirlpool changes to Wound Explosion, dealing 120 chaos damage per debuff stack removed

Chilled Sword

Effect: Weapon attacks deal additional ice damage equal to 30% of the damage.

Secondary Upgrade	Effect
10,000 Years of Sword	Additional ice damage increases to 55%; normal attack range increases, and combos become 15% faster
Icicle Sword	80% chance to inflict frostbite; freezing damage increases by 20%
Greatsword of the Barn	Increases the charging speed of the barn's sheath

Crimson Thorn

Effect: Attacks inflict a wound debuff that deals 10 chaos damage per second for 10 seconds (up to 4 stacks).

Secondary Upgrade	Effect
Crimson Vortex	Normal and dash attacks become 3-hit combos; wound stack limit increases by 6
Heretic Questioner	Weapon physical damage becomes chaos-based; Whirlpool changes to Wound Explosion

Lightning Greatsword "E2G"

Effect: Weapon attacks deal additional lightning damage equal to 30% of the damage.

Secondary Upgrade	Effect
Lightning Greatsword "E3G"	Gain 5 dark clouds every 5 attacks; Whirlpool consumption rate increases by 100% for 10 seconds (max 5 stacks)
Lightning Greatsword "S3G"	Weapon attacks inflict electric shock; electric shock debuff damage increases by 20%

Uncomfortable Joy

Effect: Weapon attacks change to use lasers. This is a ranged upgrade for the steel greatsword.

Secondary Upgrade	Effect
Illusionist's Legacy	Magic book acceleration increases by 50%
Primordial Form	Laser size increases, and damage increases by 25%
Lazarion	Whirlpool changes to Summon Amethyst, which summons a companion dealing 120% void damage

Dagger

The dagger has a 5-hit combo, fast attack speed, and low stiffness. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack (5 hits)	0.58 / 0.58 / 0.6666 / 0.6666 / 1.2
Dash Attack	1.1
Parry	1.3
Fury	4.8
Probabilistic Artifact Activation	68.75%

Crossing the Threshold

Effect: Dash attacks grant +20% normal attack damage and +30% dash attack damage for 10 seconds. Special Attack: Fury is disabled.

Secondary Upgrade	Effect
Lightless Blade	Dash Attack changes to Sword Prison, which hits multiple times with reduced damage
Absolute Envy	The 3rd, 4th, and 5th normal attack damage increases by 25%, and stiffness increases

Dry Wind

Effect: Special Attack: Fury damage increases by 20%.

Secondary Upgrade	Effect
Creeping Despair	Fury damage increases by an additional 10%; successful parries charge Immersion 2 times
Difficult Experiment	Parry is disabled, but weapon attacks have a 20% chance to gain Immersion (can be recharged up to 2 times)

Flame Dagger

Effect: Special Attack: Parry changes to Dagger Throw, which fires 5 daggers dealing 100% fire damage.

Secondary Upgrade	Effect
Heated Blade	Dagger Throw fire damage increases by 10% and penetrates enemies
Blazing Teeth	Dagger Throw inflicts a burn debuff

Lightning Dagger

Effect: Weapon attacks deal additional lightning damage equal to 20% of the damage.

Secondary Upgrade	Effect
Dark Clouds Hanging Over	Dark cloud additional damage increases by 15%, and lightning attribute damage increases by 5
Lightning's Fury	70% chance to inflict electric shock; electric shock stacking increases by 1

Cotton Leg

Effect: Weapon attacks change to use throwing shuriken. This is a ranged upgrade for the dagger.

Secondary Upgrade	Effect
Ice Bird Flower	Critical damage from weapon attacks increases by 30%
Darkness	Weapon attacks grant a Dominance buff that increases ally damage by 5% and attack speed by 6% (max 5 stacks)

Jade Remnant

Effect: Parry is disabled, but you gain Immersion every 2.8 seconds. Evasion increases charge speed by 1% per unit (up to 33%).

Secondary Upgrade	Effect
Endless Sleep	Each point of evasion increases Immersion charge speed by an additional 0.25%; the upper limit on charge speed is removed

Academy Magic Sword

Effect: Special Attack: Parry costs 0 MP, and successful parries recover 22% MP. Added in patch 0.10.6.

Secondary Upgrade	Effect
Book of Imitation	Fury changes to Grimoire: Replication, which reuses the previously used magic book once
Academy Magic Sword - Liberation	Fury changes to Liberation, which consumes all MP and fires projectiles dealing 100% of your highest attribute damage

Large Crossbow

The large crossbow is a ranged weapon added in patch 0.7.35. It has a magazine system and deals damage with arrows. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack	1
Dash Attack	1
Special Attack	2
Probabilistic Artifact Activation	120%

Base stats: 10 magazine capacity, 1 magazine, 3 rate of fire, 2-second reload.

Large Crossbow: Reloader

Effect: Normal attack damage is reduced by 45%. Special attacks change to Advanced Reload, which consumes 25 MP to reload at 400% speed.

Secondary Upgrade	Effect
Acceleration Core	Attack speed accumulates up to +60% as you attack
Crossbow: Twins	Normal attacks fire 2 projectiles; movement during attacks is improved

Large Crossbow: Shot Barrier

Effect: Normal attacks change to Gunpowder Bomb, dealing 80% more damage with melee attack rating.

Secondary Upgrade	Effect
Gunpowder Herb Conversion	Critical strike chance increases by 35%; critical hits charge 1 bullet
Explosive Device	Normal attack damage increases by 10%

Large Crossbow: Strengthen Special Bolt

Effect: Special Attack range is wider, and damage increases by 30%.

Secondary Upgrade	Effect
Rapid Fire Mechanism	Consecutive special attacks within 2 seconds deal 10% additional damage per cast (up to 50%)

Large Crossbow: Flame Mine

Effect: Weapon attack damage is reduced by 20%, but fire attribute damage increases by 20%.

Secondary Upgrade	Effect
Equipped with Guidance Module	Special attack cost reduced to 3 MP; damage scales with additional MP; special attacks track enemies
Mini Cannon	Normal attacks fire grenades dealing 75% more damage

Large Crossbow: Unstable Lightning Mark

Effect: Normal attacks have a 40% chance to fire a lightning arrow dealing 160% lightning damage.

Secondary Upgrade	Effect
Mark Stabilization	Lightning arrows inflict electric shock; electric shock damage increases by 25%
Cloud Catcher	Lightning arrows generate 3 dark clouds on hit

Large Crossbow: Frost Shroud

Effect: Special attacks are replaced with Frost Shroud, which consumes 30 MP to increase normal attack damage by 10% for 10 seconds and change attacks to ice-based.

Secondary Upgrade	Effect
Quick-Freeze Crystal	Frost Shroud no longer consumes arrows while active
Expansion Device	Frostbite bullets pierce enemies; magazine capacity fixed to 5

Kagumede

Effect: Attacks apply a poisoning debuff that deals 20 chaos damage per second for 10 seconds. Debuff damage taken increases by 20% while poisoned.

Secondary Upgrade	Effect
Form of Karim	Enhances the performance of jellyfish-type companions
Pallet Bee Palace	Poison stack increases by 3

M-9199

Effect: Normal attacks penetrate enemies and deal 15% more damage. Special attacks change to Bullet Condensation. Added in patch 0.10.14.

Secondary Upgrade	Effect
XRA-9	Using the last bullet reduces all magic book and proc artifact cooldowns by 25%

Sword (Do)

The sword (do) has a 3-hit combo, medium attack speed, and medium stiffness. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack (3 hits)	1.1 / 1.1 / 1.65
Dash Attack	0.8
Special Attack (Strong Slash)	2.34
Probabilistic Artifact Activation	82.5%

Attitude 'Onohara'

Effect: Special Attack: Strong Slash speed is influenced by attack speed. Attack speed increases by 15%.

Secondary Upgrade	Effect
The Famous Sword 'Muramasa'	Always in lead state; special attack changes to Quick Slash, which costs no MP but deals 30% less damage
'Heavy Rain' in Gokdo	Strong Slash becomes a ranged attack that hits enemies at a distance; damage scales with evasion

Helbanus

Effect: Weapon attacks deal additional fire damage equal to 30% of the damage.

Secondary Upgrade	Effect
Seething Helbanus	Burn stacking increases by 2, and fire attribute damage increases by 4
Heidi	Consuming dashes grants Overheat stacks (up to 6); normal attacks become fire-based with 110% fire damage
Solis Eckley	Consumes up to 10 Sun Swords to gain a buff that increases weapon damage by 10% per Sun Sword consumed

Geomchamdo: Cheon Gwang-sak

Effect: Normal attacks build Geomcham. Special Attack: Strong Slash changes to Iahap Slash, which deals 200% physical damage.

Secondary Upgrade	Effect
Geomchamdo: Biryu	Critical chance increases by 30%; Massive Slash range becomes a full-screen attack
Geomchamdo: Pamu	Dagger Clash is disabled, but Rampage buff changes normal attacks to 4 hits with additional damage

Waiting Cheonghwi Sword

Effect: When delivering, you continuously gain Geomcham. Using magic consumes 10 sword damage to increase magic book damage by 20%.

Secondary Upgrade	Effect
Yui's Small Dagger	Magic book critical hit chance increases by 30%
Adamah's Oath	Using magic summons a magic sword that deals damage based on empty MP

Library Spirit Seal Research Society Type 1

Effect: Dash attack damage increases by 40%. Consuming dashes makes the spirit perform dash attacks on nearby enemies (cooldown: 2.5 seconds).

Secondary Upgrade	Effect
Library Spirit Seal Research Society Type 2	Spirit dash cooldown changes to 1 second; invincibility time increases by 50%

Winter Blacksmith's Study

Effect: Lead changes to Tackle, which moves in a direction with short invincibility. Weapon attacks deal additional ice damage equal to 15% of the damage. Ice attribute damage increases by 3.

Secondary Upgrade	Effect
Silence of the Perennial Snow	Tackle changes to Ice Sliding; blocking attacks activates Glacier Echo, dealing 120% ice damage
Fragment of Nastrond	Attacking immediately after a tackle activates Ice Arm: Skadi, dealing 175% ice damage

Lightning Bronte

Effect: Weapon attack damage is reduced by 20%, but lightning attribute damage increases by 20%. Added in patch 0.9.8.

Secondary Upgrade	Effect
A Flash of Light	Electric shock damage grants Storage stacks (max 10); special attacks consume 2 stacks to cast Flash

Cutlassfish

Effect: Normal attack damage increases by 1% per 2 defense.

Secondary Upgrade	Effect
Pagap Island	While not leading, gain 1 Hardening stack every 0.8 seconds (max 10); at max stacks, damage increases by 4% per 2 defense

Pole

The pole has a 4-hit combo, slow attack speed, and medium stiffness. Its damage coefficients are:

Attack Type	Coefficient
Normal Attack (4 hits)	0.675 x2 / 1.35 / 0.9 x2 / 2.25
Dash Attack	1.0
Special Attack (Counterattack)	1.75 + 2.25 (3.5 when enhanced)
Probabilistic Artifact Activation	90%

Fire Club

Effect: Normal attacks change to Hwagon, which rotates the baton and continues attacking while allowing movement. Dash attacks are disabled.

Secondary Upgrade	Effect
Daeryeokgon	Normal attack damage increases by 30%; defense increases by 30% during attacks
Spirit Fusion Rod Ilonika	Magic books become impossible to cast; normal attacks randomly cast bolt magic

Cheolgon Shin

Effect: Weapon attacks grant a rod extension buff that increases melee attack range by 6% and final combo damage by 10% (max 5 stacks).

Secondary Upgrade	Effect
Pendulum of the Sea	Successful guards grant a heavy baton buff that starts combos from the 4th attack
Muhwanseokjang	If critical chance is below 30%, damage dealt increases by 20%

Starlight in the Distance

Effect: Special Attack: Counterattack damage increases by 20%. If max MP is over 100, guards in all directions during Counterattack.

Secondary Upgrade	Effect
Part of Seonghae	Successful guards grant Crystal Explosion on the next normal attack, dealing 300% chaos damage

Assault Spear Georoid

Effect: Normal attacks become a 5-hit spear strike with 30% more DPS. Dash attacks become a charging spear strike dealing 300% physical damage.

Secondary Upgrade	Effect
Ruashulea Assault Spear	Attack speed increases by 10%; weapon attack damage increases by 5% per dash
Assault Spear Puarska	Dash attacks gain guard; damage increases by 30% per dash used (max 6 times)

Rod of Embers

Effect: Weapon attack damage is reduced by 15%, but fire attribute damage increases by 15%.

Secondary Upgrade	Effect
Piola Gavel	Inflicting burns creates a ring of fire that deals fire damage to enemies within range for 10 seconds
Solis Braca	Collecting a Sun Sword recovers 1 additional item; special attacks change to Forge Sun Spear, dealing 450% fire damage

Baeksang's Pole

Effect: Weapon attack damage is reduced by 15%, but ice attribute damage increases by 15%.

Secondary Upgrade	Effect
Shaman's Prophecy	Every 3 weapon attack hits activates the Voluspa artifact in the aimed direction
Malaspina	30% chance to inflict frostbite; ice attribute damage increases by 5

Thunderbolt's Baton

Effect: Weapon attack damage is reduced by 15%, but lightning attribute damage increases by 15%.

Secondary Upgrade	Effect
Vidyuka	Lightning Chakram radius is determined by mouse position; smaller radius results in higher DPS
Neporax	Dash attacks change to Cloud Bottle Throw, dealing 40% lightning damage per bottle

How to Obtain Weapon Upgrades

Weapon upgrades are obtained during runs by visiting anvil rooms. The anvil is used to reinforce your weapon, and each weapon can be upgraded twice per run. The first upgrade is available early, and the second upgrade builds on the first.

According to player reports, some builds intentionally stop at the first upgrade. For example, a community guide for the Solar Flourish Staff build uses only the Tier 1 upgrade of the Flower Club (Hwagon) because the second-stage effect is not necessary for that build's Sun Sword combo strategy.

Some upgrades are added in specific patches and may not be available in earlier versions of the game. The large crossbow was added in patch 0.7.35, and the pole weapon type was added in patch 0.11.0.

Uses and Build Synergies

Sun Sword Builds

Several weapon upgrades interact with the Sun Sword mechanic. The Solis Kineris upgrade for the steel greatsword triples Sun Sword stack consumption but also triples damage. The Solis Mision upgrade for the sword and shield automatically throws Sun Swords while guarding. The Solis Eckley upgrade for the sword consumes up to 10 Sun Swords to gain a weapon damage buff.

According to a community build guide, the Flower Club (Tier 1 pole upgrade) pairs well with Sun Sword combos because its multi-hit attacks trigger Sun Sword effects rapidly. The build relies on the Cloud Iron Earring artifact to instantly recover Sun Swords.

Attribute Builds

Each weapon type has upgrades that specialize in fire, ice, or lightning damage. For example:

Fire builds: Burnt Forged Sword, Flame Dagger, Helbanus, Rod of Embers, Flame Mine
Ice builds: Chilled Sword, Frost Shard, Winter Blacksmith's Study, Baeksang's Pole, Frost Shroud
Lightning builds: Lightning Greatsword, Lightning Dagger, Conductor, Lightning Bronte, Thunderbolt's Baton

Companion Builds

Some upgrades are designed for companion-focused playstyles. These include the Ballista Sword, Rajaron (summons an Amethyst companion), Darkness (Dominance buff for allies), and Form of Karim (enhances jellyfish-type companions).

Magic Builds

Several upgrades convert weapons to support magic-based playstyles. The Magic Wand upgrade changes sword-and-shield attacks to magic missiles. The Waiting Cheonghwi Sword increases magic book damage. The Spirit Fusion Rod Ilonika changes normal attacks to cast bolt magic.

Version Context

The weapon upgrade system has evolved through multiple patches. Key version notes from the source material include:

Patch 0.7.25: Flutter of Ash effect changed to its current form
Patch 0.7.35: Large crossbow added
Patch 0.7.36: Crossbow magazine capacity increased from 6 to 10
Patch 0.9.1: Dark cloud and electric shock mechanics reworked
Patch 0.9.6: Multiple weapon upgrades added or changed; minimalism tree disabled
Patch 0.9.8: Several upgrades added or adjusted
Patch 0.10.6: Academy magic sword added; safe start tree disabled
Patch 0.10.9: Rock Sword enhancement added
Patch 0.10.14: M-9199 and XRA-9 upgrades added
Patch 0.11.0: Pole weapon type added; multiple balance changes
Patch 0.11.5: Multiple upgrades buffed or adjusted

As of March 26, 2026, there are 6 weapon types with 50+ upgrade options total.

Removed Weapon Enhancements

Some weapon enhancement trees have been removed from the game. These include:

Minimalism (Steel Greatsword)

The entire minimalism tree was disabled in patch 0.9.6. It previously expanded Whirlpool range and dealt additional damage to outer areas.

Safe Start (Dagger)

The safe start tree was disabled in patch 0.10.6. It previously enhanced parry damage and survivability.

Sources

The information on this page is compiled from the Sephiria Weapon Enhancement wiki page and community gameplay footage. Specific mechanics and patch notes are based on the collected source material, which was last verified on July 31, 2026.