Disruptive Wave (previously DeMagic, originally Freezing Waves) is a recurring skill in the Dragon Quest game series series. Introduced in Dragon Quest III as a monster-exclusive attack, it nullifies all stat changes, such as those caused by buffs (Kabuff, Oomph) and debuffs (Kasap, Deceleratle). It also removes all bad effects cast on you by the enemy, therefore, sometimes a double edged sword.
It is typically known by major bosses and is practically required on final bosses, making the use of stat changing moves futile in such battles if one's luck is unrelentingly bad.
Used by Zoma.
In the remakes, Disruptive Wave is one of the special abilities that Psaro can learn.
Used by most of the later story bosses, starting with Dhoulmagus.
It is worth noting that Disruptive Wave acts slightly different in this installment as it now only affects the opposition. This makes debuffs viable against many bosses since they can't use the ability to clear them away. The player can now use this ability against opponents, provided they invest at least 42 skill points in the sage's "Enlightenment" skill tree. This ability only costs 10 MP to cast.
Disruptive wave also destroys all tension boosts.
A Powerful Spell reducing all stats to 0