lategame kayle has no problem with dealing damage right now.
a kayle with a couple of items on her, especially
is already like a ranged 
so why does her rework have to 1 up herself on that and add additional aoe true damage to the mix?
her reworked q already shreds resistances, and if everything fails you could have just kept her current passive and make her attacks pierce or shred additional 3% armor per stack at lvl 16.
the current problem that kayle has is getting to her lategame. all this rework seems to do is to exacerbate this issue. it honestly looks like youre creating another 
a hyperspecialized champion who is so overpowered lategame, that if she isnt kept complete and utter garbage early game to the point that its barely feasable for her to survive the lane phase, she will only be a problem for this game.
i dont know if you worked skillshots into her kit, but it doesnt look like any of the mechanics that you have worked into it have counterplay elements to them either. q looks like its still point and click, and her e just an active steroid. so once she hits a certain point in the game, it doesnt look like youre going to be able to outplay any of the mechanics in her kit either.

