Grisag, the Fulgurant

Flying, Deathtouch, Hexproof
Suspend 10—{b/g}
Whenever Grisag, the Fulgurant attacks,
defending player sacrifices a creature, then
if defending player controls more creatures
then you, put two +1/+1 counters on
Grisag, the Fulgurant
Partner with Fermious Egg.