Nikolai was always kind of an under performing zombie. Not one of the best, never any casualties or anything. He did his job admirably taking a pummeling and tying up important opponents so the stars can do their jobs. But one day a warpstone crazed troll tried to attack him. Now it's unknown if he really took down the troll, or if the troll slipped in a puddle of blood that was on the field. But he got a medal out of it anyway, the illustrious 'Troll Toppler' medal. You might not have heard of it because it doesn't exist, but he got it anyway.