This Pokémon is immune to moves flagged as being sound-based. heal bell is unaffected. uproar still prevents this Pokémon from sleeping. This Pokémon can still receive a Perish Song counter through baton pass, and will retain a Perish Song counter if it acquires this ability after Perish Song is used. howl, roar of time, sonic boom, and yawn are not flagged as sound-based.