Hydarnes

You have to be patient, always when he finishes the combo, hit him as much as possible with the light spear attacks. He also keeps on calling Immortals, but just take spear and throw it at them, it kills them in not time. When he is armourless, he jumps on the cages, and throws his handclaws at you, red (hits away Your shield) or blue (Your shield is useless). Now make sure You have a spear, and move to that cage near to him, and run behind that wooden columns with dead people. Keep moving behind them, and he throws at You the handclaw, it will chop into the column for a while. He can't use one claw for a moment. Now run behind that other column, and do the same as on the first one. He will have both handclaws away, and You can throw at him the spear (You might be able to throw 2 spears, but You have to be very fast). It takes him alot hitpoints. Then, he will:
1) Stay there, and throw the handclaws at You, or
2) Run to the next cage, You can hit him on the run.

At both points, he will do the same thing like before.
When killed, You go to save Dillios, then is a cutscene and the mission ends.