Is Rampant Frogantua legal in Standard, Modern, and Commander?

Rampant Frogantua is legal in: Legacy, Vintage, Commander.

Rampant Frogantua

Q: What type of card is Rampant Frogantua?

Rampant Frogantua is a Creature — Frog. Its oracle text reads: "Trample This creature gets +10/+10 for each player who has lost the game. Whenever this creature deals combat damage to a player, you may mill that many cards. Put any number of land cards from among them onto the battlefield tapped."

Creature — Frog

Trample

This creature gets +10/+10 for each player who has lost the game.

Whenever this creature deals combat damage to a player, you may mill that many cards. Put any number of land cards from among them onto the battlefield tapped.

Set Modern Horizons 3 Commander

Rarity Rare

Mana Value 3

Artist Filipe Pagliuso

Collector # 66

Scryfall Gatherer