Psychic-type moves can hit dark-types. Unaffected by sound based moves. x1.1 accuracy boost to all moves of the user. Signature ability of Cosmotheus.
Outside of Battle
Acuity has no effect outside of battle.
(When hit by a sound based move) Acuity has cancelled out your sound based move!
(When hitting a dark-type Pokemon) Acuity has bypassed your psychic-type immunity!