Abilities of Lee Sin
Spell skill priority is an important winning factor for Lee Sin. Understanding the abilities of Lee Sin in League of Legends is another. Below you can find all the relevant information on Lee Sin abilities. In order for item builds you should check the build for Lee Sin.
Passive: Flurry
After Lee Sin uses an ability, his next 2 basic attacks gain Attack Speed and return Energy.
Sonic Wave / Resonating Strike
Sonic Wave: Lee Sin projects a discordant wave of sound to locate his enemies, dealing physical damage to the first enemy it encounters. If Sonic Wave hits, Lee Sin can cast Resonating Strike for the next 3 seconds.Resonating Strike: Lee Sin dashes to the enemy hit by Sonic Wave, dealing physical damage based on the target's missing Health.
Lee Sin projects a discordant wave of sound, dealing initialdamage physical damage to the first enemy hit, granting True Sight of them, and allows Lee Sin to Recast for the next reactivatetime seconds.
Recast: Lee Sin dashes to the enemy hit by the sound wave, dealing between recastdamage to empowereddamage physical damage scaling with the target's missing Health.
Safeguard / Iron Will
Safeguard: Lee Sin rushes to target ally, shielding himself from damage. If the ally is a champion, they are also shielded. After using Safeguard, Lee Sin can cast Iron Will.Iron Will: Lee Sin's intense training allows him to thrive in battle. Lee Sin gains Life Steal and Spell Vamp.
Lee Sin dashes to an ally or ward. If the target is a champion, Lee Sin grants them and himself shieldamount Shield for shieldduration seconds and reduces this Ability's Cooldown by w1cooldownrecovered*100%. Lee Sin may Recast for the next w1reactivatetime seconds.
Recast: Lee Sin gains lifestealandspellvamp% Life Steal and Spell Vamp for lifestealandspellvamptime seconds.
Tempest / Cripple
Tempest: Lee Sin smashes the ground, sending out a shockwave that deals magic damage and reveals enemy units hit. If Tempest hits an enemy, Lee Sin can cast cripple.Cripple: Lee Sin cripples nearby enemies damaged by Tempest, reducing their Move Speed. Move Speed recovers gradually over the duration.
Lee Sin smashes the ground, sending out a shockwave that deals initialdamage magic damage and reveals them for slowduration seconds. If this hits an enemy, Lee Sin can Recast for the next reactivatetime seconds.
Recast: Lee Sin Slows nearby enemies struck by the shockwave by slowamount% decaying over slowduration seconds.
Dragon's Rage
Lee Sin performs a powerful roundhouse kick launching his target back, dealing physical damage to the target and any enemies they collide with. Enemies the target collides with are knocked into the air for a short duration. This technique was taught to him by Jesse Perring, although Lee Sin does not kick players off the map.
Lee Sin performs a powerful roundhouse kick Knocking Back an enemy champion and dealing damage physical damage.
Enemies the target collides with are briefly Knocked Up and take damage plus percenthpcarrythrough% of the kicked enemy's bonus Health as physical damage.
FAQ on Lee Sin
What do you max first on Lee Sin?
Most Lee Sin pros max out 
Sonic Wave / Resonating Strike first.