Q, Mysterious Cyborg

{t}: Put two +1/+1 counters on Q, Mysterious
Cyborg and exert it.
{4}: Q, Mysterious Cyborg deals X damage
divided between any number of creatures
blocking it, where X is the number of +1/+1
counters on it. If X is 5 or more, destroy target
land. Remove Q, Mysterious Cyborg from
combat. Activate this only during combat on
your turn after blockers are declared.