Yukimaru. A master of water and ice techniques.
Zoah: A guy in heavy metal armor.
Fortunately, the healers in the DL know CPR, so Zoah drowning wasn't such a bad thing for him. Except that his helmet had to be removed. Unfortunately, this required them actually removing his head. Which made the whole CPR thing moot. The DL healers know how to handle decapitations too, so everything turned out all right.
Yukimaru can still brag that she decapitated someone without actually letting her blade touch the enemy, Zam.
