Now thank tank Ekko is back...
Can we possibly do something about his synergy with the grasp of the undying tree?
if you dont think he's cancer. Try this build:

remember about this bullshit mastery: Grasp of the Undying - Every 4s your next attack on a champion deals bonus magic damage, heals you, and permanently increases your health. YOU CAN EVEN LOWER THE TIME BETWEEN ATTACKS TO PROC THE KEYSTONE.