Emrakul, Plane of Mirrodin

Annihilator 3, Unblockable
{6}: Target player's land loses all abilities.
{x}{4}: Create X Eldrazi Scion tokens with,
"Sacrifice this creature, add {c} to your mana
pool."
Whenever you sacrifice a creature,
you may pay 2 life, if you do gain
control of target creature.