Take W in every scenario except when you get invaded and you're alone, in which case go E and run like hell.

Ward somewhere important like middle bush of lane, pixel bush, or mid-river then back for Oracle Lens.

Leashing: Auto then stun right before the buff attacks.

Lvl 1: Empowered W and triple auto any squishy and if your ADC has kill potential, ignite.

Lvl 2: Take Q and follow this combo: Emp W -> Auto -> Q -> Auto

Lvl 3: Take E and add it to the combo or save it for any potential counter-engage

You want to play around the bushes and punish anyone walking too close.

If lane isn't easy to get any engages in you NEED to roam. Always rush Mobility boots if you back with enough gold for it, otherwise boots and longswords building into Youmuu's is what you need.

The main philosophy is to get a lead for your carries, not you or anyone who can't use it.

Pantheon is great in early skirmishes so play with your jungler wherever possible and ensure you do so when your ADC doesn't get frozen on or possibly killed.

Roam up to your jungler when they're around bot scuttle crab or invading bot jungle. this forces either an advantage for your team, or forces the enemy team to respond which gives your ADC the chance to shove and rotate or reset effectively creating a gold/exp lead.

This is the major philosophy of my Pantheon support playstyle: YOU ARE NOT THE CARRY
so if your ADC is taking plates and you have the option of walking up to take some: don't.

Since you get Oracle Lens early you need wards to avoid ganks, and luckily control wards are only 75 gold. I tend to buy at least 15 of these for a 30-40 minute game, and it's genuinely the best way to win. They might ramp up in cost quickly but the value they hold is too much to be ignored.

Lastly, leave as many kills as you can for carries since you're support and can get by with minimal gold. Yes, Pantheon Q is a finisher but it's best to give the most expensive role as much gold and exp as they can get.

You should be stacking your Domination tree throughout the game and you want to make sure you are or else you're not going to be effective at all.

The main build will give you damage and tankiness, not for sustained fighting but picks SPECIFICALLY.

If your ADC is worth it, play between mid and bot, if not then play around your jungler. The damage and roam potential Pantheon has with Youmuu's is astounding so you have kill potential pretty much wherever you go.

BIG powerspike at Chemtank for some reason, in terms of damage; consider it a glorified sheen with the added benefit of being an in-combat movespeed steroid.

Use Youmuu's off cooldown to roam or get objective/vision control because that's what will determine won or lost fights.

The best way to play is to abuse your vision control and catch someone, preferably a squishy or the enemy carry.

If you get subpar teammates often; you need to make the difference in their place so make the effort to capture objectives, deny/obtain deep vision, and find picks in the furthest corners of the sidelanes.

Pantheon CANNOT effectively teamfight the way other supports do, so you really need to force an outnumbered fight or get picks constantly to win.

One little strategy is to give an objective and then go in once they've taken it. By this I mean with at least one other teammate, bait out abilities and let them take damage for easy pickings afterward.

The build has high burst damage with practically nothing to keep the damage going other than ignite so you want to be making these picks with a high damage team mate.

I hope this clearly explains the goal of Pantheon support.

A quick point is that everything is doable, nothing is legitimately going to make you useless. My preferred ADC ban is Caitlyn while Support ban is Janna/Lulu , but any of the threats are good champs to ban. (but if Lulu isn't a priority then man you better hope you don't see her picked).

I tend to only ever dodge if there's 3 or more of the really bad matchups but better players could make it work.

By accepting that as Pantheon support, you are not the one who's going to win the fights directly, you will be able to abuse an easy to play, immensely early game champion in a role that demands the least focus and mechanics effectively giving you the early game. In layman's terms: Pantheon is an easy champion to play and support is an easy role, so put that together and you get to take it easy compared to everyone else (including Yuumi players) so you can focus on the macro game while others need to focus on both micro and macro.