[CHAMPION CONCEPT] Kryxyl, the Ravenous Shadow
http://imgur.com/Job7VTT (NOTE: THIS IS ACTUALLY ME REDOING A CONCEPT I DID EARLIER. IF YOU WANT TO SEE THE ORIGINAL, ITS RIGHT HERE: http://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/aJL7OA4E-champion-concept-kryxyl-the-stalking-shadow)
LORE
Crystal was once a young beggar living in the Blessed Isles, cursed with a wretched face and failing health. He spent his days in the shadows begging for the help of others. When no one would help such a disfigured man, he resorted to thievery. Through his troubles trying to steal food and money, he grew a fondness of listening to passing conversations, examining personal items, and learning about the lives of others. However, he succumbed to sickness and passed away on the streets, not even with a funeral as no one knew who he was and no one cared. When the Blessed Isles were transformed into the Shadow Isles, Kryxyl found himself rises as a shadowy figure. He could only faintly remember his former name and life, so he now travels the land, feasting on the memories of others.
ABILITIES
[Passive] Memory Feast - Kryxyl uses a unique resource know as Memory. Kryxyl gains Memory slowly by being near enemy champions and more quickly by dealing damage, especially to enemy champions. When in his Limited form, Kryxyl will transform into his Unlimited form when his Memory is full. In his unlimited form, Kyrxyl's Memory is constantly draining. If his Memory hits 0, he will transform back.
[Limited Q] Cripple the Mind - Deals damage in a narrow cone. Slows enemies hit. Enemies hit at the outermost part of the cone are blinded for a short duration.
[Unlimited Q] Pierce the Soul - Deals damage in a line that passes throw enemies. Enemies hit are initially lightly knocked back and stunned, and then pulled to Kryxyl.
[Limited W] Stalk from Beyond - Passively, being near walls when out of combat grants stealth and slight movement speed.
[Unlimited W] Terrorize from Beyond - Actively, blinks to a target location and gains brief stealth and movement speed. Passively, slows nearby enemies when invisible.
[Limited E] Whispers of Enticement - Can only be casted when invisible. Sends out a skillshot that charms the first enemy hit. If Kryxyl breaks invisibility when the target is still charmed, the target becomes feared.
[Unlimited E] Promise of Damnation - Deals damage in a cone and fears enemies hit. Passively makes Kryxyl deal extra damage to feared targets.
[Unlimited R] Destroy the Weak - Suppresses target enemy champion and begins to channel. Deals a massive burst of true damage if the channel is not interrupted. If the target is killed by the true damage or while suppressed, entirely refills Kryxyl's Memory.
PLAYSTYLE
Kryxyl is a somewhat unique assassin. He doesn't really dive the backline, he usually stays at the edge of combat trying to fill his Memory. Once he transforms, however, he goes completely ham trying to maintain his memory. However, his main weakness is his squishiness. When transformed he doesn't really gain any new kind of sustain, so if he can't destroy his enemies, he will quickly die.
EDIT: Limited form camouflage changed to stealth