What if they countered it
Once Kozilek is on the field we'll make him even deadlier by pushing him into 1-shot territory with cards like Fireshrieker and Inquisitor's Flail, give him haste and trample with Haunted Cloak, and unblockable with Key to the City
Can I play Jumpstart against my friends
Under the right conditions, this can get rid of quite a few problems all at once
Its second ability provides board interaction, which I like, beyond that it is more of an excellent support card for a green deck that enjoys each of its abilities, but not so much that it'll get removed on sight
Whether its to maintain the mystique, or the fact that these chase cards sell tons of packs, its great for its bottom line but tough for players