Is Twilight Prophet legal in Standard, Modern, and Commander?

Twilight Prophet is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Twilight Prophet

Q: What type of card is Twilight Prophet?

Twilight Prophet is a Creature — Vampire Cleric. Its oracle text reads: "Flying Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) At the beginning of your upkeep, if you have the city's blessing, reveal the top card of your library and put it into your hand. Each opponent loses X life and you gain X life, where X is that card's mana value."

Creature — Vampire Cleric

Flying

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

At the beginning of your upkeep, if you have the city's blessing, reveal the top card of your library and put it into your hand. Each opponent loses X life and you gain X life, where X is that card's mana value.

Set Murders at Karlov Manor Commander

Rarity Mythic Rare

Mana Value 4

Artist David Astruga

Collector # 143

Scryfall Gatherer