Now that I've got the chance to mention...

The main enemy faction, which is literally an army of robots, will have little to no force of supernatural powers by their side. If they do, then that'd be something like an AI-learnable magic or some poor guy tortured and brainwashed to be on their side. [s]whoops did I spoil my future plan[/s]
Which makes superpowers a very effective winning hand (unless you forgot to bring protection against artillery shells). So I may be a bit harsh when judging your characters' powers sometimes.