*cracks knuckles* Right guys. 1500 games of kayle makes and a massive theory crafter makes me feel a little qualified for this.
Skiling her. Always take e first. After that it depends.
Best build. Pure ap. Double dorans Sorcs and nashors is your core. Deathcap voidstaff are your infinity edge last whisper, play her like an ad carry with these items.
Against a team of high dps squishies, I go Lichbane sorcs haunting guise voidstaff deathcap. Kite very well and q auto to chunk and w away to avoid retaliation.
Hybrid doesnt work. And theres really one reason No armor pen. You can do way more damage with ap or ad and have better cooldown options.
Full ad. There is a viable ad build on her. It's not very known. It is: Lucidities, Yomus, BotRK, IE, LW, Last item your choice, I like phantom dancer. Why this build? Good early game Blade + Yomus scales her E damage well gives her escapes and chase she needs. And puts her cdr up to a level were she doesnt have to worry about her e. Then The build scales in to full ad power with an IE and a LW.
Future build: Sorcs Nashors wits end abysal randuins haunting guise
Wits end and nashors synergise well with your e, stack the magic pen to get true damage. Combine your nice magic resist with randuins for a solid tankyness. Then upgrade guise to liandries to deal with tanks.