Hi, I some time ago played ternion attack vitality diviner with Praxidikae.
I made her as accomplished hero so I can not say anything about low levels. I used some green staff socketed with heartblood until level 53.
She had bad time with constructs and crystal golems in Mimer maze. You definitely need something to lower their resists or other weapon on switch maybe?
Otherwise it was fun and no big problems. She died several times but that is just me being clumsy and lazy and drinking coffee
I do not play hardcore.
I played her on Ragnarok only, vanilla game. I did not have Atlantis at that time.