Is Eternal Flame legal in Standard, Modern, and Commander?

Eternal Flame is legal in: Legacy, Vintage, Commander.

Eternal Flame

Q: What type of card is Eternal Flame?

Eternal Flame is a Sorcery. Its oracle text reads: "Eternal Flame deals X damage to target opponent or planeswalker and half X damage, rounded up, to you, where X is the number of Mountains you control."

Sorcery

Eternal Flame deals X damage to target opponent or planeswalker and half X damage, rounded up, to you, where X is the number of Mountains you control.

Set The Dark

Rarity Rare

Artist Mark Poole