This spell can't be countered.

When you cast this spell, take an extra turn after this one.

Flying, protection from spells that are one or more colors, annihilator 6

When Emrakul, the Aeons Torn is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

When you cast this spell, gain control of all creatures target player controls.

Flying, protection from spells and from permanents that were cast this turn

When Emrakul, the World Anew leaves the battlefield, sacrifice all creatures you control.

Madness—Pay six .