- Go as a qualified mage
- Equip stuff for extra mana & health
- Equip moonbeam dagger for extra magic damage
- Attack with 100% health
Continuously attacking with
Lightning Bolts should do the trick and leave you with just enough health to survive... Castable spells/buffs such as mage armor, fiery hands and inspiring song may give you an advantage.
That should do the trick... Level 13 should suffice to win, level 14 for sure. And no, the evil overlords don't get
easier to beat.
If they kill you before you kill them: do a full heal and try again. As long as they don't resist more than 2 lightning bolts you have an excellent chance to win!