Emrakul, the Aeons Torn is a mythic Legendary Creature — Eldrazi card from Arena Anthology 3 (AA3), collector number 1.
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 is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.