Quoted By:
Choirbird
Normal/Flying
HP 96
Atk 70
Def 55
SpA 127
SpD 52
Spd 101
BST 501
Ability: Overture
All sound based moves have +1 Priority and are 100% accurate.
As lyrebirds are excellent mimics it has a hidden trait where it will attempt to learn any sound-based move used against it at the end of the battle, so it can learn Noble Roar, Parting Shot and Relic Song.
Yes, Sing/Boomburst/Chatter/Parting Shot is a nightmare set to deal with now. Have fun!