Castle Necrocom

[Metathron]

I'm having trouble defeating Karador as a level 23 mage on Hard. The trouble is used up all my mana early on on Geyser and Fire Rain and he used Fear and Hypnosis on my stacks a lot which I was pretty much powerless to stop. In the end, he won through sheer numbers and the crystal helped by raising undead stacks. My army consisted of cavalry, sprites, dryads, elves and green dragons. Perhaps not the best composition in this case?

I'm also intrigued by the going solo with green dragons strategy. I don't think I would know how to pull it off, though. Perhaps this strategy also calls for Lina to be high level, and I have hardly used her so far (or in any other playthrough), so my chargers are really weak.