Crabatoa, the Primordial

Eminence — Whenever a Crab enters the battlefield or dies, if Crabatoa, the Primordial
is in the command zone or on the battlefield,
each opponent mills six cards.
{1}{u/b}: Sacrifice a Crab, draw a card.
{2}{g/w}: Each creature this combat
assigns combat damage equal
to it's toughness rather than it's power.