Primordial Hydra is a mythic Creature — Hydra card from Magic 2012 (M12), collector number 189. Current market price: $6.67 (foil $28.92), TCGplayer market prices via Scryfall.
This creature enters with X +1/+1 counters on it. At the beginning of your upkeep, double the number of +1/+1 counters on this creature. This creature has trample as long as it has ten or more +1/+1 counters on it.