The Darkin Scythe (Passive): INNATE: Kayn and his weapon Rhaast battle for control. Dealing damage against champions causes them to drop orbs that are automatically collected upon leaving combat, filling a bar above Kayn's portrait. Post 15-minutes the amount of orbs is reduced.
Once the bar is full he can choose to either be overwhelmed by Rhaast or win over Rhaast and become the Shadow Assassin based on whether he has damaged more Melee role melee or Ranged role ranged champions, respectively. Once primed, the other option becomes available after 4 minutes.
The transformation can be activated only while standing in the spawn fountain.

Shadow Assasin: Kayn's basic attacks and abilities deal 12% - 44% (based on level) of post-mitigation damage as bonus magic damage, lasting for 3 seconds upon entering in combat with an enemy champion, refreshing after 8 seconds out of combat with them or by using Umbral Trespass.

Reaping Slash (Q): Kayn dashes forward, dealing physical damage to all enemies he passes through before flourishing his scythe, dealing the same damage again to surrounding enemies. Other abilities can be queued while casting this ability.

With Shadow Assasin form the skill is unchanged.


Blade's Reach (W): After a short delay in which he can't perform any other actions, Kayn performs an upwards sweep with his scythe, dealing physical damage to all enemies in a line and slowing them by 60%, decaying over 1.5 seconds.

In Shadow Assassin form Kayn conjures a living shadow at the casting position to perform Blade's Reach in his stead, allowing Kayn to perform other actions. Blade's Reach also gains extra 200 range.

Shadow Step (E): Kayn gains 40% bonus movement speed, is ghosted and can ignore terrain collision for 1.5 seconds. Immobilizing effects will interrupt Shadow Step.
Kayn heals himself upon moving through terrain for the first time and, if he's not in combat with enemy champions, Shadow Step's duration is increased. Entering combat with a champion after the effect is enhanced reduces the remaining duration to 1.5 seconds. The effect also cannot remain active out of terrain for longer than 1.5 seconds.

Casting Shadow Step as Shadow Assasin removes slows, additionally if Kayn enters terrain at least once, Shadow Step will be improved for the remainder of its duration to grant 70% bonus movement speed and make Kayn immune to slows.

Umbral Trespass (R): PASSIVE: Kayn basic attacks and abilities against champions apply Umbral Trespass for a few seconds.

ACTIVE: Kayn infests a marked enemy champion for up to 2.5 seconds, revealing them and becoming untargetable for the duration. Reactivating Umbral Trespass ends it earlier. Upon reactivation or at the end of the duration, Kayn wrenches himself free from their body in the cursor's direction, dealing physical damage to the target.

With Shadow Assasin Umbral Trespass gains 200 bonus range and emerging from the target resets The Darkin Scythe cooldown.

Get lvl 3 and gank top , if you succeed go base , if not gank mid ; the rest of the game you should alternate between lanes because your E provides you good gank possibilities on every lane , i personally camp bot when i choose shadow assassin becasue is easier to kill the adc as an assassin , don't forget about the top , that depends entierly on the ganks this meta. Also don't be afraid to rush adc in team fights your ult will be enough to kill an adc if he took some dmg previously . Shadow form is a good hunter so watch out for lonely splitpushers