WHY AERY?

It works with our R obviously, but also surprisingly with our W.

So to shield someone just put your sword on them (Q) -> W.
Overtime with items and us gaining shield power and AP (aery shield scales with AP), this adds up for our ADC and can help with our junglers objective taking. Minor point is it also deals damage for our fights.

Our R will be huge with all these bonuses including Aery.

RUNE EXPLANATION

Summon Aery - Explained above.

Axiom Arcanist - We gain 14% extra shield for our ult. Already pretty big. But also it grants us 7% ult refund on kills/assists. Shen base R CD is around 200 seconds. Say we help our toplaner win a 2v1, thats 28 seconds refunded! Essentially axiom arc without trolling our item build path. You will feel that your ult goes up lighting fast with this page.

Transcendence - Free 10 ability haste so goes well with our CD focused build, our scaling isn't half bad with this setup so more scaling is always a win. If you want Celerity isn't that bad either but I think this one is safer and more consistent. I do not recommend Absolute Focus.

Gathering Storm - Again this build scales decently and to aid that gaining ~50AP for free is nice. This AP will scale our shields and tbh help our mental a little bit. Waterwalking is okay too but 20 minutes in gathering storm is basically just an upgrade to it. I do not recommend Scorch.

RESOLVE

Second Wind - You'll probably need this. Botlane is full of poke so anything to help you withstand this pressure is a must. But if you are confident, strictly speaking Conditioning is better. However 90% of the time imo you'll be glad you took Second Wind.

Revitalize - Not only does it give us free heal/shield power, but also an additional crazy extra 10% bonus if our target is low HP.

ITEMS

Moonstone Renewer - Gives us health, CD, and a bit of AP. But the passive is where its at. Basically if there is more than 1 person in the fight, someone else will get around 30% of your massive ult shield as well. A double ult! If not, then that bonus goes to the original recipient meaning a 130% ult shield! This doesn't even factor in our previous bonuses we get from runes or other items etc. My personal rush item.

Ionian Boots - Eh, it helps ult CD but they're not great in the current patch imo, so you can I guess go whatever like ninja tabis or swifty boots but I like feeling like my ult is on a 10 second cooldown. ¯\_(ツ)_/¯

Redemption - Health, ability haste and even that sweet 10% health shield power. So hear me out, you ult in, you use this item, the shield does its thing tanking damage and then the redemption goes off and heals your team in the fight. Crazy clutch plays made with this and can be used if you int and die :)

Flex Slots

Thats the core of the build the rest should be flexible based on if you need a bit more frontline you can lean into tank with stuff like locket or iceborn.
If you have a person popping off on AD you can go ardent or if on AP then go something like abyssal or staff of flowing water.

Just hit tab and look at what your team needs.