To defeat the mysterious hermit: you must be a Iceland mage, got all attack bolts max(LA and HA too) 990 Mana, 220 Lives, Basic damage max (to be number one), Combined attack ( to be number one) Freeze effects max, Freeze attack, Freeze defend, Regenerate, and Freezed death.
Then just fight him until he has 20 ice effects, then use Freezed death and you become the invinsible.