The Colonel

Indestructible
The Colonel is not a creature unless you control
three or more creatures with a -1/-1 counter on
them. Creatures you control with a -1/-1 counter
on them have Hexproof and "Remove a -1/-1
counter from this creature: Regenerate this
creature."
Tap an untapped creature you control: place a
-1/-1 counter on that creature.