Cold Fission

From Dragon Quest Wiki

Cold Fission, also known as Diamond Dust, is a recurring attack in the Dragon Quest series. It is an icy attack that unleashes a swirling tornado of frozen air at a group of enemies.


Dragon Quest X[edit]

Diamond Dust is an enemy-only breath skill that can be used by certain bosses. It inflicts around 700 ice damage to any characters caught in a fan-shaped area in front of the user and has a chance to stun them for a turn.

Dragon Quest Heroes: The World Tree's Woe and the Blight Below[edit]

Cold Fission is a special attack known initially by Aurora and costs 5 MP to cast. When she uses it, Aurora will summon an icy tornado in front of her, damaging any enemies caught in the vortex.

  • Cold Fission can be upgraded with the skill Cold Fission Extender, which extends the attack's area of effect. It costs 5 skill points to learn.

Dragon Quest Tact[edit]

Cold Fission was originally an enemy-only skill that can be used by certain monsters in high-level stages and boss battles. Jolly sasquash can also learn it through Talent Blossoming. It costs 84 MP to use and inflicts major Crack-type martial damage to all enemies in a radius of 1 around the user. The skill was originally known as Diamond Dust, but it was changed in Version 3.1.2 of the game in order to avoid confusion with the ability of the same name from Final Fantasy.

Cold Fission (ダイヤモンドダスト Daiyamondodasuto)Tactlogo.png
Ability information
Cold Fission
Role * Type * Element MP cost
Attack Martial DQTact Crack.png 84
Range Additional effects
DQTact SkillRangeRadial.png
Radius 1
Deals major Crack-type martial damage to all enemies in area of effect
Naturally learnt by
Archdemon, Bag o' laughs, Jolly sasquash, Krystalinda, Queen slime, Santa Krystalinda

Related skills[edit]


Diamond dust is a meteorological phenomenon where a ground-level cloud is composed of tiny ice crystals that glitter in the sunlight like gems. It forms under otherwise clear or nearly clear skies and can commonly be observed in Antarctica and the Arctic.