Kayle is an awesome champion to have in your deck of cards. She is a well rounded champion who can fill pretty much any role. I prefer going tank/support with her over going attack or mage. Why? Because she is totaly hardwired for it. She doesnt die, due to her ult and divine blessing , and she can also rack up some pretty sweet damage at the same time with her Righteous Fury . The slow from her Reckoning is nice and helps when chasing with your teamate. Kayle is BEAST.

First I like the health that the Greater Quintessence of Fortitude provides. It really helps out for at the start and for a while with Kayle.

This gives some nice armor at first that will help you kill the annoying Trynd .

This helps against the annoying Malz who wont stop shoving Malefic Visions into you.

Greater Mark of Replenshment Good mana Regen to help with Her mean OOM.

For Masteries you can tell that I want lots of defence. Kayle is a verry tough tank when played right and these masteries help improve that. I max Strength of Spirit because it will end up giving me 22 health per 5 seconds, and for a mastery thats pretty good. Kayle has a really fast OOM so I obviously max Perserverence. I would have liked to max Meditation but Tenacity is worth more.

Dorans Shield Is the item I get first although the Ruby Crystal works well too. Doran's Ring is another one to consider but I find it doesn't give you enough defence. I would not buy the Regrowth Pendant because Kayle needs health at first.

These help Kayle with running or chasing, but if you are fighting a mainly attack team go for the Ninja Tabi for sure.

while tanking with Kayle I used to rush a Warmogs, but Kayle has a way to fast oom, so I started getting the Glacial Shroud first and it worked pretty well. Plus it builds toward your Frozen Heart wich is verry important.

Now this might not seem like the most important item of all time but it actualy is very important and will help you become a succesful tank/support. If you have this you will survive more and look more intimidating. Also it jus does plain good with Kayle.

OR Now these two items are verry important and are both needed. But you can switch the order depending on who you are fighting.If they have a beast vayne who you need to shut down grab the Frozen Heart. If an Anavia is trashing your squishies take Banshees first and Rightous Fury her to death. You get the picture. Both of these items, but you chose the order.

Now we start to really get impossible to kill. After you grab Aegis you will have a bunch of everything really! Plus this item will help your team too. Feel free to PWN. Remember you will still do considerable damage with Righteous Fury.

Once you have your guardian you will be very tough and can take loads of damage. Tank Kayle's Wepons are complete! AND SHES A BEAST.

Reckoning is a spell that I wouldn't pay much attention too if you are tanking. When you go ap this spell can do a lot but when tanking it really only helps for slowing people. It's slow actualy lasts for 4 seconds so always use it when running and chasing.

This spell is very useful as it heals AND gives a handy speed boost. Always use this spell whenever you can. Heal your laning partner up and speed him up on chases.

Now this is one sick underrated spell that will force loads of squishies to rage quit. It does loads of Damage! Dont EVER be afraid to take on the stupid ashe in the woods. You. Will. DESTROY HER. Just use all your spells and whack her to death. If you dont suck, she will die.

Good Ult. Useful agains loads of champions and great if somone tower dives at you. I love shoving it on someone when the enemy Karth is about to kill him with his ult! This spell has loads of uses, but dont waste it.

Ghost is a good spell that helps Kayle go faster then a Ferrari on the German Autobonds. Its great for chasing or running, you choose.

This spell is way good and will easily help you get first blood. Its good with ghost and many of your spells

Ya if you feel like it you can take this spell. Its pretty good but I find that Kayle needs Ghost and Exhaust.

Flash is handy but ghost works better with her usualy.

If you feel you are running out of mana 24/7 then grab this. Kayle's oom is pretty fast

When laning you need to know some champs who you are good with, and some you are bad with. One of the best is Tryndamere , due to the fact that you heal him, add to his slow, and give his ult another few seconds. This combo is literaly undefeatable if done right. Try it out, and if you arnt an idiot you will see how good it is. Xin , Sivir , Ashe , Caitlin , Vayne , Yi , and many others are also good to lane with. The only champ I would not reccomend Laning with is No one. Kayle can make the worst champ do not as ****py.
While laning you should try to always have your Righteous Fury on. you should always be smaking creeps and harrasing other champs with it. Feel free to take damage from the annoying ez, you can just heal back up.
In Teamfights try to draw the damage to you. Also try to save your Ult for your DPS, like Yi or Trynd . It will do a lot more one them than it will on you.

Pros
-Good Harasser
-Great Tank
-Takes TONS of Damage
-Can still do damage
-Great support

Cons
-Not super good against Mele or Magic DPS
-Hard to play right

All in all, Kayle is one BEAST champion who can tank like a BEAST and support like a BEAST and kills like a HOT BEAST.