Twilight Prophet [Commander Masters]

Set: Commander Masters Type: Creature — Vampire Cleric Rarity: Mythic Cost: {2}{B}{B} FlyingAscend (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 converted mana cost.