Thanks all, I'll be sure to use her well. I was crossing my fingers hoping to not get dupe (since it didn't really say you couldn't get one...), so it definitely turned out better than expected. For now I will place her with Shiro-chan Christmas and Cybidium. At this point, each structured "team" has about 2 rainbows (counter, debuff, etc); granted if I weren't so scatter-brained, I probably would have 1-2 full rainbow set-ups. Ever since I learned my lackluster "hybrid" approach to team building wasn't going to work, now I'm more focused on 1-2 ability themes per team and work my way from here (...which is what your supposed to do from beginning...oh well xD)
On another note, the rarity upgrade, what was the rule, say my 5 star has all equips unlocked and I evolve to 6 star, what happens? Does it revert back to 1 skill slot; if so, do we get any compensation for those lost skill slots?