Is Thundermane Dragon legal in Standard, Modern, and Commander?

Thundermane Dragon is legal in: Legacy, Vintage, Commander.

Thundermane Dragon

Q: What type of card is Thundermane Dragon?

Thundermane Dragon is a Creature — Dragon. Its oracle text reads: "Flying You may look at the top card of your library any time. You may cast creature spells with power 4 or greater from the top of your library. If you cast a creature spell this way, it gains haste until end of turn."

Creature — Dragon

Flying

You may look at the top card of your library any time.

You may cast creature spells with power 4 or greater from the top of your library. If you cast a creature spell this way, it gains haste until end of turn.

Set Tarkir: Dragonstorm Commander

Rarity Rare

Mana Value 4

Artist Slawomir Maniak

Collector # 38

Scryfall Gatherer