Emrakul, Eons Infected

This spell can't be countered. You may only pay life for this spells mana cost if you have 7 or more poison counters.
When you cast this spell, take another turn after this one.
Flying, trample, protection from colored and multicolored spells, annihilator 6, infect
When Emrakul, Eons Infected is put into a graveyard from anywhere, it's owner shuffles their graveyard into their library and gets a poison counter.