There is the risk that some decks out there don't have any spells they won't be able to cast, but the loss in such a case is the mana required to make him work more than the opportunity cost of a larger creature
Snuffers doesn't spare your own stuff and Banshee needs some work to be a micro-Plague WindPlague Wind, but that's okay because Scorpion God and Hapatra care more about volume than precision
Additionally, non-token creatures that enter the battlefield that entered from somewhere besides the Chainer player's hand gain haste, further incentivizing the use of the graveyard
if aggression spikes, his stock goes up
Enchantment - Class Pir, Imaginative Rascal Partner with Toothy, Imaginary Friend (When this creature enters, target player may put Toothy into their hand from their library, then shuffle.) If one or more counters would be put on a permanent your team controls, that many plus one of each of those kinds of counters are put on that permanent instead
Hidden Dragonslayer takes place of High Priest