Trundish Marksmen

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
{t}: Trundish Marksmen deals 1 damage to any target dealt damage this turn. If it's a creature, it gains unleash until end of turn. Activate this only if Trundish Marksmen has a counter on it.