This is a fun and effective build to use on Kayle which focuses on Attack Speed and On-Hit Effects. It's a build that's enabled me to use Kayle as a carry and has worked both before and, especially, after the Kayle rework. A few notes on the why and how of this build:

• The items in this build are cheap, quick, and easy to build. 8,695 Gold versus 10,000+ for similar damage output.
• Building these items in the right order will help Kayle do damage at all stages of the game.
• Stacking On-Hit effect items makes sense for 3 reasons unique to Kayle: Reckoning, Righteous Fury, and her new Holy Fervor.
• Stacking Attack Speed makes sense for 2 reasons: more On-Hit Magic Damage, more Resistance Shredding.
• You will be gaining Magic Resistance and Armor from Wit's End and Madred's Bloodrazor.
• This build is hard to counter because you shred resistances and, even though you are acting as a ranged carry, you are mainly dealing Magic Damage. This means Thornmail and Defensive Ball Curl won't be as effective against you as they would be against typical AD ranged carries.
• Something curious: this build will make you damage Tanks as effectively as Squishies, because of the Resistance Shredding and Madred's insane On-Hit damage.
• Something funny: it's just awesome to see all the red text floating up from your enemies each time you hit them (twice a second). You will see your Righteous Fury, Malady On-Hit, Wit's End On-Hit, and Madred's Bloodrazor On-Hit coming up from your enemy's head at machine gun speeds.

Pros + Continuous, reliable damage + Effective against squishies and tanks + Hard to counter + Cheap items + Effective at early, mid, and late game + Great pusher

SPACESPACE

Cons - Weak support - No AP nuke from Reckoning

For all these pre-game choices, I believe it depends on the personal preference and play style of the individual. However, here are my suggestions:

Runes

I've included my usual caster rune set. This is a setup that will give you great spell damage early game with Magic Penetration Marks, and everything else AP. Why caster runes? You will hit hard with Reckoning and Righteous Fury early game and the Magic Penetration will last you the whole game. Since your On-Hit effects will be applying Magic Damage, this will make you hit even harder.

• Greater Mark of Insight
• Greater Seal of Potency
• Greater Glyph of Potency
• Greater Quintessence of Potency

Masteries

I suggest going hybrid in the Offensive tree, resulting in 21 Offensive points. The rest should be used in the Utility tree, getting increased regeneration and gold. Some points may be reorganized depending on your Summoner Spell choice.

Summoner Spells

The two summoner spells I strongly suggest:

• : Very useful for keeping you alive, especially because you don't want to get focused. It can help you land kills as well.
• : Great spell throughout the whole game. Use it to lane more effectively, to defend from a backdoor, or to push a lane.

I suggest levelling up Reckoning as your top priority. Reason for this is the Slow and the % Increase in damage. I recommend Righteous Fury as a second priority because you don't want to rely on its range for your damage output. If you activate Righteous Fury, more than likely Kayle will be standing still while your enemy moves away. It is much more effective to use Reckoning on your enemy and stick to him with your melee attacks, activating Righteous Fury only if he gets away from you or if you feel the need to finish him off from afar.

I don't level up Divine Blessing because the heal is going to be weak with this build. It will consume your mana if you use it as a heal (this was actually done intentionally by Riot in the rework to make Kayle more oriented towards carry than support). So, I use Divine Blessing mainly for its movement speed buff and focus on levelling up the offensive abilities first.

Before I discuss, here are some notes on this item build:

• Follow the build order. It takes advantage of the lower cost of Malady and Wit's End to give you that extra 20 + 40 Magic Damage on every hit, plus attack speed. If you just go straight for Madred's Bloodrazor you will be lacking damage early and mid game.
• Once you purchase your Madred's, you are free to follow whichever build path makes sense for late game. You will have all the damage that you need from these 4 items, I suggest building some Health to prolong your damage output.
• Don't be half-***ed when doing this build. If you purchase other items in between these 4 you will be hurting your damage output. This build is straight to the point: Attack Speed and On-Hit Effects to make you a carry. You will not be a support or an AP nuke.

Start off by buying:

• Boots of Speed: Movement Speed to follow/flee enemies.
• Health Potion x 3: Extra 600 Health for laning.

On your first trips back, purchase the components for Malady:

• Dagger x 2: Attack Speed = more Righteous Fury hits.
• Amplifying Tome: AP for your Reckoning and Righteous Fury.

Next, finish up the two items you started:

• Malady: Magic Resistance shredding, On-Hit 20, Attack Speed. You will notice an increase in damage output as soon as you buy this item. It is cheap and you will build it gradually during Early game. Very good choice to increase your damage fast, instead of buying a more expensive item which will take a lot longer to kick in.
• Berserker's Greaves: Attack Speed and Movement Speed to get more hits with your Righteous Fury. You really need to get Movement Speed as fast as you can so you can stick to your enemies and land more attacks.

You will be able to purchase your next item pretty soon:

• Wit's End: Attack Speed, On-Hit 40, and bonus Magic Resistance. This will be another increase in your damage output, and you won't have to wait long to purchase it.

By this point, you will have spent 4895 Gold on this build (not counting Health Pots). You will be delivering 1.621 Attacks each second, and each one of these attacks will be hitting for your Base Damage + Righteous Fury + Malady (20) + Wit's End (40), this is before being multiplied by Reckoning. There is no DPS build that will give you +25%AS, +50% AS and +40% AS AND add 60 damage to each attack for 4895 Gold. This is what gives this build competitive edge.

• Madred's Bloodrazor: Attack Speed, On-Hit 60 to 160, and bonus Armor.

After this, you are free to do whatever you like. At this point, I find it null to build more damage on Kayle, since she already shreds squishies down at 2 hits per second, and she can do substantial damage to tanks as well. I suggest buying some Health to let her do those 2 hits per second for a longer time (continuous, reliable damage output). If you do need additional damage, however, try building some Critical Chance and AD, since you already have plenty Attack Speed.

Suggested Late Game Items:

Defensive

• Frozen Mallet: good amount of Health and keeps your enemies from getting away while you shave them down.
• Warmog's Armor: if you just need Health to help you stick in a team fight.
• Banshee's Veil: if your enemies can burst you down rather quickly.

Offensive

• Trinity Force: if you're not having trouble being focused and want to add some additional damage to your build.
• Infinity Edge: to add some serious Physical Damage to your attacks, if that's what you need.

I'll keep this simple. You have one job if you build On-Hit DPS Kayle:

Attack enemy carries

In order to do this, keep the these points in mind:

• You do not want to be focused. Let your tank and other beefy team mates initiate.
• Use your speed buff from Divine Blessing to hurry into the fight once it's started.
• Pick a target and stick to it. You want to take advantage of your Attack Speed and defense penetration to shred at least one enemy down.

What about your ult, Intervention? Use it on one of the carries as soon as he gets targeted. Don't wait for him to be half dead before ulting. You want your ult to cancel out damage, not to save someone after all the attacks have landed on him. Yes, you can use Intervention on yourself because you are also a carry if you have followed this build.

That's it for this build. Remember the trick is in the order you purchase your items. Cheap items with On-Hit effects and Attack Speed make Kayle a killer in the early and mid stages of the game. Make her damage more sustainable for late game and avoid getting focused so you will be shredding your enemy's health at 2 attacks per second.

Good luck. Leave comments with improvements/experiences and I will update accordingly.