Is Thrummingbird legal in Standard, Modern, and Commander?

Thrummingbird is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Thrummingbird

Q: What type of card is Thrummingbird?

Thrummingbird is a Creature — Phyrexian Bird Horror. Its oracle text reads: "Flying Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)"

Creature — Phyrexian Bird Horror

Flying

Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Set Edge of Eternities Commander

Rarity Uncommon

Mana Value 2

Artist José Parodi

Collector # 80

Scryfall