What if Shen scaled better with AP?
If Shen scaled better with AP he could build items such as Gunblade, Protobelt, Nashor's tooth. It would open up a lot of build paths for him. He could build some AP items and some tank items. He won't be as tanky but he'll do more damage. Here are some possible changes that would encourage Shen to build more AP: Passive: +20% AP shield strength Q: + 10% AP bonus on-hit damage E: + 30% AP damage