Concealer of Depravities

Crystallize (Whenever this creature deals enough
combat damage to another creature to kill it, create a
token that's a copy of the creature except it's a green
Blix Construct with Crystallize. Then, put a +1/+1
counter on a creature you control.)
Whenever you Crystallize a creature, Blixes you
control gain hexproof for as long as you control
Concealer of Depravities.
{g}: target enchantment you control gains
hexproof until end of turn.