The Crimson Beherit

{t}, {b}: Sacrifice a creature and gain mana of
any color equal to its power.
{b}{b}{b}{b}: Exile The Crimson Beherit and
transform target creature.

The Crimson Beherit, also known as the
"Egg of the King", is said to grant one the world in exchange for the owner's flesh and blood, only falling
into the hands of one bearing requisite qualities to
become a member of the God Hand.