Colresss Experiment will be your main draw Supporter in any of these decks
Thematically, Battle for Zendikar was focused on Ulamog, while Oath of the Gatewatch switched attention to Kozilek
Aven Trooper was in an era where Madness was a thing, so its a very, very bad Madness enabler
The ability to control combat while also cancelling out combat tricks means that your opponents are going to be forced to turn on each other and also be playing combat where all the tricks are on-board tricks
The goofy thing with Perplexing Chimera is that it will just travel across the battlefield, changing ownership with every spell cast
After all, if there are only 295 copies of it in existence, its going to be prized, even if its Storm Crow