Gressal's Harbinger

Crystallize (Whenever this deals enough
damage to a creature to kill it, create a token
that's a copy of that creature except it's a
green Blix Enchantment Creature with
Crystallize. Then, put a +1/+1 counter on a
blix you control.)
Whenever Gressal's Harbinger deals excess damage, put that many +1/+1 counters
on it.