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Evolution is a game mechanic that changes a base weapon to a stronger evolved weapon using a passive item as a catalyst. Union is a combination of two weapons. Evolved weapons usually inherit most of the base weapon stats with extra effects, most Area-of-Effect weapons may add bonus to Area and some have changes on base damage because their behavior is different.

To evolve a weapon, the player needs to fulfill following conditions:

  • The player must have a fully leveled base weapon and its passive item counterpart (of any level) in their inventory.
    • In case of union, both base weapons must be at level 8. This may also require a passive item counterpart.
    • In the case of Infinite Corridor and Crimson Shroud, both passive items must also be fully leveled.
    • In case of Bracelet and Bi-Bracelet, a passive item is not needed.
  • The player must then collect a Treasure Chest that contains an evolution type reward. In most stages, this kind of chests are dropped by bosses that spawned at or after the 10-minute mark with some exceptions:
    • The first chest in Mad Forest dropped by the Glowing Bat, which spawns along the wave at 1:00, can evolve a weapon.
    • All chests in Dairy Plant, Il Molise, Cappella Magna and Boss Rash can evolve a weapon regardless of time.
    • In Green Acres the ability to evolve a weapon is the same as the wave in its original stage. For example, chests dropped by waves from Dairy Plant prior to 10 minute mark can evolve a weapon, but waves from Inlaid Library cannot.
    • Treasure Chests that contain an Arcana (minutes 11:00 and 21:00 in every normal stage) cannot evolve a weapon.
    • The Character Gyorunton can evolve weapons with any chest pickup that gives an item, regardless of other conditions.

The chest will then grant an evolved weapon as its first reward in place of the usual random upgrade. On evolution, the base weapon is removed and the evolved weapon is added. The passive item remains unaffected. On union, both base weapons are removed and their union is added, freeing a weapon slot.

Generally, only one weapon can be evolved per chest, including the higher tier chests. The exceptions are the minute 9, 11 and 13 non-Arcana chest drops in Il Molise, the minute 10 chests in Dairy Plant, Gallo Tower and Cappella Magna, the minute 20 chests in Inlaid Library, Dairy Plant, Gallo Tower, Cappella Magna and The Bone Zone and the chests dropped by the Giant Enemy Crab, Drowner and Stalker. Chests in Il Molise and the chest from Giant Enemy Crab can evolve up to five weapons and the rest of the mentioned up to three. To evolve multiple weapons at once, these chests must be of the higher tier with enough rewards, as evolution is a type of reward.

List of evolutions and unions

Evolutions

Base weapon Passive item Evolution
Sprite-Whip.png
Whip
+ Sprite-Hollow Heart.png
Hollow Heart
= Sprite-Bloody Tear.png
Bloody Tear
Sprite-Magic Wand.png
Magic Wand
+ Sprite-Empty Tome.png
Empty Tome
= Sprite-Holy Wand.png
Holy Wand
Sprite-Knife.png
Knife
+ Sprite-Bracer.png
Bracer
= Sprite-Thousand Edge.png
Thousand Edge
Sprite-Axe.png
Axe
+ Sprite-Candelabrador.png
Candelabrador
= Sprite-Death Spiral.png
Death Spiral
Sprite-Cross.png
Cross
+ Sprite-Clover.png
Clover
= Sprite-Heaven Sword.png
Heaven Sword
Sprite-King Bible.png
King Bible
+ Sprite-Spellbinder.png
Spellbinder
= Sprite-Unholy Vespers.png
Unholy Vespers
Sprite-Fire Wand.png
Fire Wand
+ Sprite-Spinach.png
Spinach
= Sprite-Hellfire.png
Hellfire
Sprite-Garlic.png
Garlic
+ Sprite-Pummarola.png
Pummarola
= Sprite-Soul Eater.png
Soul Eater
Sprite-Santa Water.png
Santa Water
+ Sprite-Attractorb.png
Attractorb
= Sprite-La Borra.png
La Borra
Sprite-Runetracer.png
Runetracer
+ Armor
Armor
= Sprite-NO FUTURE.png
NO FUTURE
Sprite-Lightning Ring.png
Lightning Ring
+ Sprite-Duplicator.png
Duplicator
= Sprite-Thunder Loop.png
Thunder Loop
Sprite-Pentagram.png
Pentagram
+ Sprite-Crown.png
Crown
= Sprite-Gorgeous Moon.png
Gorgeous Moon
Sprite-Gatti Amari.png
Gatti Amari
+ Sprite-Stone Mask.png
Stone Mask
= Sprite-Vicious Hunger.png
Vicious Hunger
Sprite-Song of Mana.png
Song of Mana
+ Sprite-Skull O'Maniac.png
Skull O'Maniac
= Sprite-Mannajja.png
Mannajja
Sprite-Shadow Pinion.png
Shadow Pinion
+ Sprite-Wings.png
Wings
= Sprite-Valkyrie Turner.png
Valkyrie Turner
Base weapon Passive item Passive item Evolution
Sprite-Clock Lancet.png
Clock Lancet
+ Sprite-Silver Ring.png
Silver Ring
+ Sprite-Gold Ring.png
Gold Ring
= Sprite-Infinite Corridor.png
Infinite Corridor
Sprite-Laurel.png
Laurel
+ Sprite-Metaglio Left.png
Metaglio Left
+ Sprite-Metaglio Right.png
Metaglio Right
= Sprite-Crimson Shroud.png
Crimson Shroud
Base weapon Evolution
Sprite-Bracelet.png
Bracelet
= Sprite-Bi-Bracelet.png
Bi-Bracelet
Sprite-Bi-Bracelet.png
Bi-Bracelet
= Sprite-Tri-Bracelet.png
Tri-Bracelet

Unions

Base weapon Base weapon Passive item Evolution & Union
Sprite-Phiera Der Tuphello.png
Phiera Der Tuphello
+ Sprite-Eight The Sparrow.png
Eight The Sparrow
+ Sprite-Tiragisú.png
Tiragisú
= Sprite-Phieraggi.png
Phieraggi
Base weapon Base weapon Union
Sprite-Peachone.png
Peachone
+ Sprite-Ebony Wings.png
Ebony Wings
= Sprite-Vandalier.png
Vandalier
Sprite-Vento Sacro.png
Vento Sacro
+ Sprite-Bloody Tear.png
Bloody Tear
= Sprite-Fuwalafuwaloo.png
Fuwalafuwaloo

Trivia

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