Drundar Arena (Evil Path)

Explanation: You have to fight four undead knights, and then the Avatar of Fear.
> Strategy: You can't gate out during this fight, so make sure you have plenty of health and mana potions before entering the arena. Stock up on ranged weapons if you don't have any good ranged spells.
> Tactics: The first part is the most difficult. You'll need to fight the undead knights one at a time. As long as you're attacking one of them, the others won't advance on you or attack. So don't run head first into the middle of this group, come at them from the side so you can meet them one at a time. The one on the far right casts a skeleton pet, so it would be good to take him out first.

The second half of this fight is against the Avatar of Fear. He is easiest to defeat using ranged attacks. It takes longer than melee, but you're less likely to die that way. All of his attacks are close range.

The Surface (Innovation Boss)

Explanation: The Iron Guardian holds the copper sprocket that you will need.
> Strategy: This is a very frustrating boss fight, if you don't know his pattern. When you're in front of him, he'll attack with melee swings. If you're at a distance, he'll use ranged attacks. Both will kill you in about three hits. If you're behind him, he'll use melee attacks that will be able to hit you if you're too close.
> Tactics: The trick is to stay behind him, but just far enough away so his attacks can't hit you. While he's attacking, he'll pause for a couple seconds and you'll be able to run up and hit him. Ranged magic works better than melee. You won't have to risk running up to close and getting hit. Normal ranged weapons won't work very well. Mostly they just bounce off his armor. Also, watch out for the suicide bombers running around.