This build makes you face tank a **** tons of burst while healing all of those damage, you will deal long term damage duel to your pet. Focus on W multiple champs (Hold on to your W if needed).
Common Kayn player's mistake: Buffer your W whily you are in Q animation, it's ****, don't do it, save your W for special occasion instead of wasting it.
You are just an average jungler, try not to duel Lee Sin/Yi/Graves/Khazix/Vi, you know how painful they are to deal with.
Use your E to gank through walls, even if there's no wall you can still use E's movement speed to gap close faster, you can Q while E to cross long area between walls.Clear path solo from both camps: Play Video

Q to wall to lower dashing time.
Red Kayn Q + Gore + Smite deals 1k7 damage to dragon.
Gank early game to get your team snowballing, don't worry about which orb you get early on, you will earn a lot more orbs after 8 minutes, Kayn with red form is his powerspike, late game you fall off a lot against their adc.
BUY PINK WARDS, your E can catch people off guard.
Red Kayn needs no health, life steal is gonna replenish your hp bar -> buying raw armor/mr + damage + cdr is more valuable.
I usually take the high damage item path if possible, going full tank feels kinda weak, going the bruiser path without Serylda falls off late game a lot.
Patch 13.1b: With the AH and healing nerf for bruiser items, you don't have many item choices as before, Black Cleaver is a must after Goredrinker now, you may replace it with Shojin Spear if you are fed.
Patch 12.13: Your Q damage is mediocre now, try to play safe and use your Gore to restore missing HP, cover your carry's *** is the highest priority, say goodbye to your explosive slay-your-enemy-heal-like-a-god ultimate devil Rhaast gameplay.
Use your W wisely, try to knock up their front-line rather than wasting it on their carry if you are not 100% sure you can chase them.
Building tank feels better now, rather than the bruiser damage build.
If they have a camille, get a sterak's gage.

Climbed from Gold 1 to Diamond 5 solo queue with Kayn.
(Season 2022, ended up with Master flex)
(11/October/2022: Diamond 2 flex right now lol)
(12/October/2022: Back to diamond 1 flex, still too lazy for soloQ)
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