Naya Soulbeast is a rare Creature — Beast card from Commander 2013 (C13), collector number 157. Current market price: $0.28, TCGplayer market prices via Scryfall.
When you cast this spell, each player reveals the top card of their library. This creature enters with X +1/+1 counters on it, where X is the total mana value of all cards revealed this way. Trample