There's no doubt shen has potential, but there's alot of tanks now that have a better capability then he does, the fact that he mostly scales AP is ridiculous since you dont build ap with him. His energy cost on his taunt is too high and his shield is incredibly weak. At least change his scaling, shen i'll start playing him again.
I really hope that last sentence isn't a pun.
I do agree with you, but imo, a few tweaks would do just fine. Such as like you said, increase the shield strength of Shen, like from 60/100/140/180/220 to 80/120/160/200/240 at least, and increase the hitbox of his E, since it is a lil too narrow.
I play Shen all the time and even I can say he needs some kind of rework. His Q seems fine in terms of damage but his W is next to useless most of the time while his ult is obsolete because of everyone rocking teleport now. I think his stat scaling is very weak and he heavily relies on his team and building items to really thrive mid-to-late. As opposed to someone like Poppy who could literally build Tri-Force and carry the game or how his kit is literally restricting him from top lane integrity, especially with the season 4 mastery changes. The only thing that's been forgivable to him was the rune changes that increased attack speed and made that one of the more accessible options aside from the typical hybrid pens. But the armor nerf hurt him. The sunfire nerf and dorans nerfs have hurt him. He really needs to be updated to standard with the modern demands of the meta.
i would love this, i even have a skin for him from when i played him
https://www.youtube.com/watch?v=Mbr8Rcktsu4 Shen requires dps to be viable and is very strong when built properly. He also fits very well in the jungle with self sustain, ganks, and counter ganks. He scales off tanky items that offer dps and attack speed.
Shen should have some other form of attack damage apart from his passive and q. Some champions can deal damage with all thier abilities including passive and other tanks can dish out way more than shen. This kit is keeping shen the same way he is only thing making him more interesting, difficult and situational along with making ability power more viable on him. Buffing and nerfing each ability, nicely balancing him out. As shen is not a stealthy ninja but more of a "in your face beat him up brawler who is tanky xD".
Passive- Ki Strike [Unchanged] but in addition shen takes 10% reduced total damage from critical strikes.
Vorpal Blade- Cost 65 energy. Deals 65/105 /145 /185 /225 +65% AP scaling. (Range increased to 500 from 475). (Shen gains 0.25 magic resist per killing enemy unit with vorpal blade). Healing values untouched. If shen dashes to a target marked with Vorpal Blade he shaves 2 seconds off shadow dash.
Feint- Cost 40 energy. Absorbs 60/100/140/180/220 +40% AP scaling and 1/2/3/4/5 every 5% health missing. (Basic attacks on shield reduce the attacker's attack speed by 5% for 3 seconds). After the shield breaks for 3 seconds shen is able to cast Crescent Slash damaging allt argets infront of him [work on minions and monsters as well as champions].
Crescent Slash- Cost 15 energy. Deals 25/50/75/100/125% of the damage absorbed in a 90 degree cone with a range of 350 slowing enemies hit by 10% for 1.25/1.5/1.75/2 seconds. Damaging a target marked with Vorpal Blade will cause them to bleed Cooldown and duration of shield unchanged.
Shadow Dash- Cost 120/115/110/105/100 energy. Deals 20/40/60/80/100 +100% AP scaling as true damage. Shen is healed for 10% of the damage dealt per target. (Range increased to 625 from 600). Taunt duration increased to 1.75 seconds from 1.50 seconds.
Stand United- Unchanged [No complaints there!]
Everyone who agrees with my changes share this everywhere because i really want riot to change shen's kit :)
sincerely, another Shen player 
