Zenkichi

Zenkichi can be selected as a blocker while
tapped.
If Zenkichi blocks an attack while untapped, he
gains reach until end of your turn.
If Zenkichi blocks an attack while tapped, he
gains a +1/+1 counter.
{t}: Deal 1 damage to target creature for every
+1/+1 counter on Zenkichi. Remove all +1/+1 counters on Zenkichi.