Karthus Rework Idea

Passive:Death; same as old Q:Grasping Death-Karthus sends out 3 wraiths in a cone that deal x dmg and drag enemies 250 units toward karthus W:Haunting lyrics/Free the soul-En E:Defile-Karthus can surround himself in the souls of his prey, dealing damage to nearby enemies and rooting them briefly (.5sec) but quickly draining his own Mana. Enemies are also grounded R:After channeling for 3 seconds, Karthus deals damage to all enemy champions. Damage is halfed to enemies outside of a 3200 unit circle around karthus

So unfortunately I don't have time to draw up numbers right now and will be doing it at a later time what do you guys think about the current changes