Usopp

Reach.
{t}: Deal 1 damage to target creature or planeswalker, if target creature dies put a +1/+1 counter on Usopp, if target planeswalker is destroyed put two +1/+1 counters on Usopp. When Usopp has two or more +1/+1 counters, you may remove up to four +1/+1 counters to deal 1 additional damage for every two +1/+1 counters.
If Usopp has five or more +1/+1 counters at anytime remove all counters and tap Usopp.