I like the thought you put into your guide and you wouldn't make a guide if it didn't work for you. But I have a few issues with this build.

1) Zerk Greaves in my fallible opinion are a waste of space. Other boots have different bonuses than BG, and compared to DCR, CCR, MP etc, 25% atk speed isn't huge. If you want AS, then Guinsoo's Rapeblade and a Phantom Dancer (or two) should be enough.

2) Clarity is justifiable, I honestly get the idea of it. But others would prefer other spells. I use Flash=Exhaust. Clarity isn't useful later on in my experience. Yes I spam spells, but generally when I have no mana, I also have little health. It's convenient, but not as useful as a couple of other spells.

3) The Crystal Scepter is interesting. But a little superfluous imho. The slow Kayle already has, the AP and the health is nice, but RoA also provides health, AP and mana too. I guess it;s workable, I just find it excessive tbh.

Anyway, sorry for the wall of text, apart from those points this build is solid, well explained and workable. Also worthy of a vote.

Well, I guess I can handle weird. I've only recently started playing Kayle, so I definitely appreciate the feedback. Now, let's get to those comments.

Boots, of course played by how things are in the game. I didn't want to put every set of boots on the item list, so I figured my preferred choice would suffice. :P

Dorans Ring: a noob item? I've never really figured it a noob item, because it both gives you a little bit of AP and health in the beginning a waste - because it puts you over the enemy players, and assists in getting in the early game kill like I described. Playing this role, I find that the easiest time to slip in the kills is often in the beginning, just because everything is on a flat scale and kayle ends up easily stronger than most in the beginning.

The skill's was just a mess up, apologies. I always max out ults asap.

As for the last bit. I can definitely agree with that. I just meant that, when compared to pure dps characters, she's not going to be up there in damage. Sure, she can rip apart HP bars; but with this build, I doubt it's going to happen quicker than some of those other die hard damage dealers.

I find your guide, weird. One of my fav champs is Kayle, and i play them similar, but also very different.

Boots, you need to play this by ear. If your up against a CC heavy team, u need to get merc treads, simply as that. Or if your up against a stupid team of Yi, Ashe, shen, Olaf, and Akali, where dodge and some more armor would benefit more then a lil atk speed.

Items in general, why get dorans at all, its a waste of money. Dorans is more of less a noob safety item, anybody decent shouldnt get it.

Skills, why do you wait till 12 and 17 for intervention? Also maxing out your heal earlier i also see as kind of a weird move, but ill let it slide since you did say this was support dps, not straight DPS.

You shouldnt say late game shes not great. when she gets fully geared, shes amazing. Her righteous fury hits like a truck, shes swinging fast as all get out, not only that but her reckoning hits hard and is practically spammable with nashors tooth. That plus she can heal/buff herself to catch people. Kayle is easily one of the most powerful additions to any team, early, mid, and late.