Taurean Mauler [Commander 2015]

Set: Commander 2015 Type: Creature — Shapeshifter Rare Cost: {2}{R} Changeling (This card is every creature type.) Whenever an opponent casts a spell, you may put a +1/+1 counter on Taurean Mauler. The power of a waterfall. The fury of an avalanche. The intellect of a gale-force wind.