Nature magic is as much about the destructive power of the elements as it is about healing, and no one wields this power more potently than Kalah. Some say that the antlers on his head are a sign that he is a Forest god in mortal form. It’s unknown if this is true, but Kalah’s enemies do often end up feeling as if they’ve been caught in the middle of the kind of natural disaster that only gods are normally able to unleash.
The longer Kalah survives in the arena, the more powerful his attacks become, so by keeping him healed and well guarded, commanders can finish the battle with a lethal Forest killing machine at their disposal. And it’s wise, when fighting against Kalah, to target him with Assassins in order to take him out before his power grows too strong.