The AI is pretty stupid with that XD
I just let my Zoroark Turn into Chandelure as I don't use Poison or Fighting type attacks, and as it resists Dark and Ghost, Zoroark can easily take a hit from that AI.
Also, with the Musha-niclus thing, yeah, basically.
Hum, I quite like Musharna, as in my White, unless it's a Dark Type or it has Insomnia, my Musharna just tanks the attack, uses Hypnosis, and then Dream Eater to OHKO the opponent and Fully heal Musharna XD
Works every time.