2/4 rares, but didn't bother much. Everything upto rank 8 was extremely simple and 1 shot most of it. Bosses at rank 8 took me ~10-20 tries so far.
Arcane mage, don't run just pop all CDs nuke him till first adds, then arcane explosion them down and go back to nuking rinse and repeat using a damage reduction like temporal shilled, and have your counter spell ready.
A tip for anyone doing the rares, for the defence system. Get a priest to levitate you, and you won't have to jump over the lasers. Easiest rare by miles lol.
I'm still stuck on Battletron ><