I've played pantheon for a while now as my main champ. I admit I don't have the most experience when it comes to playing as some, however after about 6 months of playing him and a couple of hundred wins and losses with him, I've got a decent idea of how I play him. A lot of people say he is underpowered and other champions do the job better, but I think he is brilliant, and if you know what to do and how you can do a lot of burst damage, harass, and jump in at the right times to save the day or ruin other champions.

9/10 I will use Flash/Ignite when I use panth. I can't tell you how many people I've used flash to kill, flash/ignite to kill, or ignite to someone. I've found it also useful after ulting someone who manages to get just outside your range to be able to pop to them. It also makes the world of difference if you need to run. Exhaust is another one that is great for champs that are running, especially when they are at a higher HP. It all depends on your style of play. I prefer Ignite, but you may prefer TP in the end. Both work well building this way.

For runes I pick the Armor pen quints and armor pen marks. Panth needs the armor pen, it is well worth it, I've crit for over 1000 on spear throws at level 18. For Seals, I go with strait up Mana/5 because if you use your spear shot for harass, you will eat through mana. I find I can stay in lane and last hitting minions and rebuild my mana pool a lot of times keeping my CS up, but you have to be patient sometimes. Lastly I get Cooldown reduction Glyphs, because I love the cooldown reduction it offers for your ult and stun mainly. It adds up for you in the long run.

I level up the Spear sSot, your "Q" attack first, Heartseaker your "E" next, then Aegis your "W" last. Your ult you upgrade when it becomes available to you. I make sure I include rank one of the Heartseaker and Aegis within the first 6 levels. In fact Aegis should be your second move. you can harass a lot of times with your Spear Shot, lowering enough HP on the enemy team to allow you a good opportunity for kill. I find especially when I have sion in lane if you time your stuns, his shield/explosion, your spearshots and ignite into the mix you can get first blood and a lot of kills. Also note that his Aeigis is perfect for interupting, especially in stopping champs like Kat or nunu from the full length/damage from their ult.

When ulting I tend to ult behind the target as much as I can, cutting off their escape approach. If done correctly people have walked right into the center as I've landed. I tend to open up with an aegis to stun then, Spear shot, then heartseaker, then spearshot again. Be mindful where you jump. Allies will rely on you to jump in and if you pull out before you land, you may have pissed off allies. I got my friends killed many times when I first started playing, and still do sometimes. The jump has been nerfed a lot, but still can be effective for saving turrets and jumping to your team to provide a slow/stun/aoe burst.

Build 2 offers my other Skill upgrade order that I throw in sometimes.

I always start with a Doran's blade as it offers extra health, damage, and a touch of lifesteal. I generally get boots, a health pot, and though I didn't add it, a ward to watch the river for a gank. From here if things are going really well, your CS is good and you are pushing the players out of lane/have a kill or two skip going for brutalizer first and get a BF Sword. I find a lot of times if there is more of a struggle for you or your team, your best bet is to build toward a brutalizer first, then work in a BF sword. Build a Bloodthirster and start getting stacks built so you can get it fully powered up. The nice thing about getting stacks on the bloodthirster is you also build up farm for Purchasing another BF sword and work toward a black cleaver or you can start building toward a frozen mallet. I tend to not build the mallet, but the slow can make all the difference when they are running. I go for the attack speed in black cleaver to combine with my Bloodthirster's Lifesteal. After I've obtained these, I generally finish the brutalizer by turning it into a Youmuu's Ghostblade. If the game is still going at this point I build the mallet/cleaver if I haven't, and finish off with an Infinity Edge. If I'm having problems with health/magic damage however I throw a banshee's veil in somewhere in the mix. It all depends on how you and your team is doing. You can deal some sick damage, but it costs you some survivability.

Communicate, call mias, jump in to save allies/turrets, and you can have a lot of fun with Panth on a team. He is great for stopping ults like Kat's and has a lot of potential.