Her Q and E scales with AD, Q even better than AP which offers burst potential, she also has nice self-peel. You can take Heal, but already you have alot of defensive capability.

The guide is not going to be improved.

Lethal tempo seems like only good mastery on Kayle, so take that. Take also sorcery for that late game power.

Pros Cons

Alot of defense.
Team will blame you for pick.
Mid game god.
• Many matchups are bad.
  Aoe damage.
• Expensive build.
  Nodbody expects AD Kayle.
• If E is on cooldown you are
• Mana hungry early. screwed.
• Always pushing lane

Press E always when want trade or farm unless you are alone in lane. Q deals big damge late use it when chasing or escaping. W is speed up, when building AD it heals nothing. Ult when you are low yourself or ally is. Ulting divers like Camille, Shyvhana or Singed in teamfights is good idea.