With only one overdrive and one massive dragon, you are very unlikely to get both. If those cards are actually important in your deck, you could try adding a couple more copies. I'd either add 2-3 more of each, or just remove all of them. You might want to do something with pillars/pends, 5 dune scorpions, 6 momentum, couple shield, couple otyughs, and eternity. If this is for AI3, you probably don't even need the shields, as with AI3 rushing is more effective than playing defensive unless you are trying for an EM and have good healing.
Anyway, it looks like a sort of fun deck. If you really like dune scorpions, there is at least one deck with dune scorpions and chaos powers that is capable of farming false gods, so you could always try to make that deck once you get this perfected.
