Balerion, the Black Dread

Flying
Untamed At the beginning of combat on your turn, flip a coin for each other creature on the battlefield that isn't a dragon or Targaryean. Deal damage equal to Balerion, the Black Dread's power to each creature whose coin comes up tails. This creature cannot block or attack.
At the beginning of your upkeep, put 2 +1/1counters on Balerion, the Black Dread.