Prime Speaker Zegana is a mythic Legendary Creature — Merfolk Wizard card from Commander 2015 (C15), collector number 230. Current market price: $0.60, TCGplayer market prices via Scryfall.
Prime Speaker Zegana enters with X +1/+1 counters on it, where X is the greatest power among other creatures you control. When Prime Speaker Zegana enters, draw cards equal to its power.