Emrakul, The Aeons Destructor

Flying, Vigilance, Death touch, Annihilator 10.
When Emrakul, The Aeons Destructor enters the battlefield, take another turn after this one at the beginning of chosen players end step, all players sacrifice all lands, lands you control tap for an
extra {c}{c}.
{4} target land you control gains an indestructible counter
After existence was Annihilated, Emrakul
reigned supreme.