Shishigami, the Deer God

Shishigami enters the battlefield with {x}+1/+1 counters on it.
{t} : Choose one -
- Shishigami deals damage equal
to its power to target creature;
- Shishigami loses {x}+1/+1 counters, put
{x}+1/+1 counters on target creature.
- Shishigami transforms retaining its counters.