Champion idea

His whole kit revolves around the idea that his body is made of smoke, he can use the smoke to form weapons. His weapon is a giant black cleaver made of the smoke he produces from his body with a medium ranged melee auto attack range As for a name I was thinking something along the lines of Lextus -The devils protege- coming from somewhere in the shadow isles.

P- After a long cooldown (around 80s) Lextus becomes invulnerable to enemy damage for 1.7s, allowing damage to pass through his body made of smoke.

Q- Lextus swings his cleaver twice in a cone of damage, however if waited on the second cast the range is increased and applies a slow. AD

W- Lextus thrusts this cleaver forward in a dashing motion damaging enemies and units in his path. Can use over walls. AD

E- Lextus jumps and explodes into a cloud of smoke in an small range AOE dealing AD and AP

R- Using something like Shyvanas fury he builds up by auto attacking and using spells, his ult becomes unlockable at 100. He takes the smoke he used for his cleaver back into his body to gain claws which reduces his auto attack but grants him a new skill set for a certain amount of time.

Ulted Q- A targeted leap to and enemy champion or unit AD

Ulted W- Lextus swipes in a small cone dealing AD

Ulted E- Lextus smashes the ground sending a row of spikes made out of smoke to impale and slow the enemy champion dealing AD and AP

Let me know what you think, I'd love to see this as a champ! or at least something similar