Crunch

You unleash a powerful blow that has a chance to temporarily lower a target’s defense. Make a melee attack against a target, doing 2d6 + MOVE dark damage on a hit. On a natural attack roll of 18 or higher, the target’s AC is decreased by 1 for the remainder of combat. This decrease may be stacked, up to a maximum of -5 to AC.

At Higher Levels: The damage dice roll for this move changes to 2d8 at level 5, 4d6 at level 10, and 6d6 at level 17.