I like the sound of a Void Heavy Burst exotic, but your idea is insanely busted. Suppression on demand? So it basically has built in Unstop, and on top of that, free Volatile? I mean it would literally rendering Void as a whole useless. Pair this with a Voltshot heavy and Chill Clip Riptide and you can stun every champ in the game just with your weapons. Plus, Graviton is basically the same thing. Cosmology is like a better Destabilizing Rounds, but it doesn’t proc a keyword. I think a better option would be for it to proc a Weakening burst on kills and then gives Volatile Rounds when defeating Weakened Targets.