I am going for either the first or the last. Koldar is a Witcher who embodies the ideal of the Hunt. He will go after any bounty or rumor of beast. He will examine it, follow it, and slay it. He will break it down as a predator, he will hunt it as if it were the prey, and he will take a trophy.

This makes him a man of great knowledge when it comes to beasts, but he willingly cares nothing for politics and very little for over all magic. He has developed a couple unique signs, which are mostly slightly changed pre-existing signs, but Magic is something he wants nothing to do with in the end.