Even if they do that, Emrakul is sideboard technology that is tricky to deal with and asks very little of you
Its not unlikely to win shortly after you cast this card
Auras, equipment, and adding counters are the easiest to understand, but there have been other, stranger experiments
A lot of your cards will be able to crew this and so yeah, it is just an overly good card that fits neatly into this archetype
Garganacl ex #89 (Pokemon Stellar Crown | Pokemon Cards) prices are based on the historic sales
Finally, you can spend 9 loyalty to activate: If target player has fewer than nine poison counters, they get a number of poison counters equal to the difference. All you have to do then is add another poison counter somehow - say, by proliferating - and that opponent is dead