Talk:Karthus/@comment-4499945-20120411173724/@comment-4743916-20120411183708

Your wall is basically your main tool for controling team fights. Despite how it's not impassable terrain, the slow and armor/mr reduction that it gives makes it extremely unpleasant for the enemy to pass through. After you wall, the way you move should determine whether or not you are engaging or not. If you are engaging with wall you should be moving toward the center of the teamfight with defile on and constantly be laying waste. The idea of Karthus's teamfight play is to move with the team and deal constant damage. If you die that's when you'd probably use Requiem so that you deal uninterruptable damage even after they focus you.