- I'd say more than four like a Pokemon has, but don't go overboard with, say, twenty. Six or seven ought to be plenty, I'd say--and they can definitely have non-combat abilities! As for power levels, they're not over 9000 they're not going to be effortlessly blowing buildings up, but they can do some serious damage when they put their minds to it.

- That's a question for Actual Mods, I think--I have no idea.

- Yes! It's not a common thing at all, but it is possible!