I'm thinking of just going with a full-Steel team for this game, since I already have Riolu and Magnemite, and then you also have Aggron, Skarmory, Steelix, Metagross, Escavalier, and others to pick from. Unfortunately, my schedule's pretty full lately, meaning I've only been able to get two Gyms in, meaning I have no idea if such a thing is actually viable. >_<