I was struggling to find a fourth red archetype that wasn't tribal. I landed on chaos, which I feel has very strong red flavor but not a ton of strong card support. Honestly, I think it's one of the weekest mini-decks in the cube. But it could make up for it with wild antics.

Zurzoth is leading the way, making devils and causing mischief. The devils can either disrupt player's hands or serve as fodder for various morphing effects (Glimpse of Tomorrow, Chaos Warp, Lukka, etc.). Sprinkle in some cascade, wheels and a good old-fashioned haymaker and this deck should be flipping lots of tables.