by JoeMerzl on Nov 28, 2016
Vigilance. Hardened 1 (When this creature enters the battlefield
put 1 armor counter on it, the next time it would receive damage
you may prevent that damage and remove 1 armor counter. Creatures
with Hardened may not receive +1/+1 counters).
Add 1 armor counter each time a artifact equipment or weapon is equipped.