Is Toadstool Admirer legal in Standard, Modern, and Commander?

Toadstool Admirer is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Toadstool Admirer

Q: What type of card is Toadstool Admirer?

Toadstool Admirer is a Creature — Ouphe. 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}.) {3}{G}: Put a +1/+1 counter on this creature."