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Laning phase:

- Sight Scatter: Kayle's Q has a really cool mechanic that makes the blade scatter once she hits a minion, effectively extending its range. It can be used like Lux's Q to poke the enemies while they try to hide behind their wave

- Extended threat: Kayle's E, Starfire Spellblade, gives Kayle more than 550 auto attack range if cast from outside this value because it, apparently, starts from the edge of her hitbox. It's around Zyra's attack range.

- Passive aggressive: if you already have a stack of your passive, auto attacking a tower will refresh its duration BUT it won't grant other stacks (not really useful but can be helpful).

- Priorities: Maxing E doesn't make sense because it only gives additional on hit damage and % missing health damage. You won't be reaching lv11 soon when playing with a lane partner and you won't be building many attack speed/on hit items so the damage is really not significant.

- Into the fray: Alt+W automatically heals the most injuried ally near Kayle.

- Relic of the past: Kayle's E procs Relic Shield. Please don't build Relic Shield on Kayle.

- Leadership: if you want more damage or you're like 6/0, you can get a Sheen. Kayle's scalings are really weird because even with a lot of AP, her E doesn't do much damage and her Q is mostly for poke so a Sheen is the best thing you can get to snowball early on.

Mid to late game:

- Denying light: Kayle's E is an auto attack reset, which means that you can use it to kill wards faster if pressed right after an auto attack.

- Time ticks away: Kayle's ultimate timing is crucial. Even tho it gets down to a really short cooldown.

- Scaling yourself: Try to stay in lane as much as possible. Kayle is a pretty level dependant support until at least lv11 because of the obvious limitations, so trying to catch up in exp is always good.

- Kill em all: Kayle's E works on fruit plants and yes, also blast cones.

- Afterglow: Kayle's Q cast time scales with her attack speed, included the one you get from her Passive. If you plan on fighting you can stack your passive on the wave that's pushing in (without taking cs) and try to go in.