Is Chicken Troupe legal in Standard, Modern, and Commander?

Chicken Troupe is legal in: Commander. It is banned in: Legacy, Vintage, Pauper.

Chicken Troupe

Q: What type of card is Chicken Troupe?

Chicken Troupe is a Creature — Bird Performer. Its oracle text reads: "Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) When Chicken Troupe enters, you get {TK}, then you may put a sticker on a nonland permanent you own."