Twilight Prophet is a mythic Creature — Vampire Cleric card from Murders at Karlov Manor Commander (MKC), collector number 143. Current market price: $3.73, TCGplayer market prices via Scryfall.
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.