Its not anyone that killed laiken, but yourself. He will be dead together with razakel. I found that killing razekel will be a better choice, as it lead to both laiken and razakel drop a loot bag after death. Where as just killing laiken himself first, razakel will still die but no loot bag appear. Well it maybe a glitch on my game though.
The best strategy for warrior is, just get your armor defense rating as high as possible. With good armor and some potions, you basically wont die and can slash your opponents to death without thinking much of what skills needed or to use.
