Slayer of Titans

Trample, First strike, Piercing (This card ignores blocking creatures and deals damage directly to its player.)
{t}{x}; Add X +1/+1 counters to Slayer of Titans until the end of the turn. If Slayer of Titans exceeds 15/15 he gains Defender as long as he is 15/15 or higher.
His family was killed by a titan, now he hunts them to extinction. But be carful when he's around, you'd hate to get on his bad side