I've been contemplating twin universe as a replacement for fractal. The idea is to try to make the easy gods easier. For example, Ellidnis is on the easier side with this deck, but with his growing forest spirits and ultrachids, it can get difficult sometimes.. I've saved my butt a few times by desperately fractalling his ultrachids, but really I only need one with quintessence, and annoying thing about fractal is that it leaves you with no aether. Graviton might also be a little easier if we could clone his otyughs. Fractalling otyughs works, but again, I only need one and a the TU could leave me with enough aether to fractal him on the same turn. On the other hand, I'm thinking heavily with emergency CC in mind. It might be better just to sneak a CC card like an elite otyugh in this deck for such emergencies.
On the other hand, octane would be harder without fractal. He's easy enough to killl (we don't need fractal for damage), but the fractal really does help if we use it on his eagle eyes to keep him from exploding our good stuff like shards and shield long enough for us to get out a pulv.