Is Clandestine Chameleon legal in Standard, Modern, and Commander?

Clandestine Chameleon is legal in: Commander. It is banned in: Legacy, Vintage.

Clandestine Chameleon

Q: What type of card is Clandestine Chameleon?

Clandestine Chameleon is a Creature — Lizard Guest. Its oracle text reads: "When Clandestine Chameleon enters, you get {TK}{TK}, then you may put a sticker on a nonland permanent you own. Clandestine Chameleon has all abilities of ability stickers on other permanents you own and cards in your graveyard."