Death Brood Demon

Flying, Trample, Deathtouch.
As long as there are less than 20 cards all graveyards, Death Bread Demon has Indestructible and -2/-2.
As long as there are more than 40 cards all graveyards, Death Bread Demon has Shroud, Indestructible and +4/+4.
{1}: Each player sacrifices a permanent at random.
{b}: Each player sacrifices a permanent.
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"The Hell Bringer."