New Champion Concept [Ein'Kav, the Evolutionary]

I just had the idea for a champion whose playstyle shifts as the match goes on. So, here I present my voidborne, the Evolutionary.

Name: Ein'Kav, the Evolutionary Position: adc (vaguely humanoid in shape, looks to be wearing a coat) passive: Descent with Modification-increases his armor and mr slightly when he dies. Regains 10% hp and mp upon levelling up. His abilities grow with ranks 3 and 5. Q: Spines-launches a wall of spikes that do not pierce enemies. Pierce-launches three large spikes in a cone that go through all enemies. Bind-launches five medium spikes in a cone that root enemy champs hit and pass through minions. W: Watchers-leaves behind a stealthed eye that watches the nearby area. Wanderers-drops a spider eye that patrols an area. will explode when killed, dealing small damage. Heralds-drops a flying eye that will follow enemy champs, slowing them. E: Molt-clears all debuffs and gains ms for 5 seconds. Cocoon-roots self for 5 seconds, taking decreased damage and healing. Survival-launches an egg and detonates his body, dealing damage equal to his current hp + AP. egg hatches in 5 seconds, hatching into him with 25% max hp. R: Propogation-summons a horde of five voidlings that attack enemies. If they live for 5 seconds, they evolve into greater voidlings with enhanced stats for 10 seconds before dying. Speciation-summons a voidborne beserker that attacks for 10 seconds before dying (think Tibbers). Lore: The latest abomination from the Void, Ein'Kav seems obsessed with one thing: Changing. He is the only voidborne to join the Institute willingly, throwing himself into battle in order to evolve more and more.