Make grasp of the undying better.
Grasp needs to be improved IMO. I'm just not sure how yet. Maybe change it from 4% of your max health on melee auto attacks to 4% of your max health plus 1 for every stack? So if you procced it 50 times. You'd do 4% max health plus 50 magic damage?
For ranged it would be 2.4% plus .6 for every stack.
. So if the changes happened, that's like 40 magic damage after a 15 minute lane. You'd still be better off going conqueror or yellow tree runes unless you were an assassin.