Stupor

Gives the Champion a 25% chance to use the debuff [Sleep] for 1 turn when attacking. Like all control debuffs, the Stupor set is useful for Champions with AoE skills. Sleep differs from other control debuffs in that if the hero under the debuff takes damage, he wakes up. This means that it is better to combine the characters in the Stopper sets with others whose skills do not cause direct damage, for example, with the [Bomb] skill.