Is Undying Flames legal in Standard, Modern, and Commander?

Undying Flames is legal in: Modern, Legacy, Vintage, Commander.

Undying Flames

Q: What type of card is Undying Flames?

Undying Flames is a Sorcery. Its oracle text reads: "Exile cards from the top of your library until you exile a nonland card. Undying Flames deals damage to any target equal to that card's mana value. Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)"

Sorcery

Exile cards from the top of your library until you exile a nonland card. Undying Flames deals damage to any target equal to that card's mana value.

Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)

Set Saviors of Kamigawa

Rarity Rare

Mana Value 6

Artist Tsutomu Kawade

Collector # 119

Scryfall Gatherer