Is Nessian Game Warden legal in Standard, Modern, and Commander?

Nessian Game Warden is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Nessian Game Warden

Q: What type of card is Nessian Game Warden?

Nessian Game Warden is a Creature — Beast. Its oracle text reads: "When this creature enters, look at the top X cards of your library, where X is the number of Forests you control. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order."

Creature — Beast

When this creature enters, look at the top X cards of your library, where X is the number of Forests you control. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Set Journey into Nyx

Rarity Uncommon

Mana Value 5

Artist Vincent Proce

Collector # 132

Scryfall Gatherer