Agoroth: The Wraith Warrior

This champion sadly has no artwork, but I envisioned him being part of the Shadow Isles group of Champs (Karthus, Hecarim, Mordekaiser, Thresh, etc.). As for the rest of his look, just picture a large muscular warrior with dark gray armor with spiked shoulder guards, ghostly green-blue eyes and a cruel smile, and you've pretty much got him. He wields a single straight blade sword designed for hacking and slashing.

Role: He would be either a top lane fighter/tank or a warrior jungler. His strengths are his mobility to catch opponents and some heavy damage output with his Q ability and W activation ability (see below). He would also be a huge presence in team fights with his ultimate. However, since he can't be too op, if he is built for 100% damage output, he would likely be pretty squishy. And he is built tank, obviously his damage output won't seem so high. As a side note, you high-detail number-crunchers will inevitably point out that i don't have base damages, ratios, or cooldowns for his abilities. I simply dont think I'm good enough at the game to design these fine points yet. If you have suggestions about numbers, let me know; I'll be happy to hear them.

Lore: Once one of Runeterra's mightiest warriors, Agoroth is now a man possessed by the enemies he faced when he journeyed to the Shadow Isles to face mankind's greatest foes. Since his fall to the darkness he has wandered the coastline of the Shadow Isles, killing all who arrived on its shores, utterly relentless in his pursuits. The souls of his victims remain bound to him, lurking nearby until he calls on them to aid him in battle.

Passive: Passage of the Damned --- Gains 30 movement speed and 15% cooldown reduction while moving in the direction of a nearby champion who is at 30% health or less.

Q: Wrathful Blow --- Deals 150% attack damage on next attack and initiates a 3-strike sequence. If all 3 blows in the sequence land, Agoroth heals for 25% of the damage dealt by the sequence. (The blows in the sequence do not deal any bonus damage; the 3-strike sequence is visual only)

W: Wraith's Fury --- Passive: Killing a unit (minion, jungle monster, or enemy champion) grants Agoroth a stack of Wraith's Fury, giving him 3 bonus movement speed (maximum 10 stacks). --- Active: Activates to grant Agoroth bonus damage on his next attack, consuming all stacks. If the ability is activated but the attack does not land within 3 seconds, the bonus is lost, but Agoroth regains half the stacks he had when he activated the ability.

E: Soul Clasp --- Consumes 2 stacks of Wraith's Fury to send out a spirit in a straight line skillshot. If the spirit hits an enemy unit, they are marked for 3 seconds. While the mark is active, Agoroth can dash to them, slowing the target by 30% for 3 seconds (does not deal any damage). Agoroth can also mark an ally with this ability and dash to them (no other effects, just the dash to the ally).

R: Unleash the Fallen --- Agoroth and the spirits of those he has slain unleash a terrifying scream as the spirits swirl around him in a zone. Any enemy caught in the zone is feared. Any enemies still inside the zone when the ability ends are slowed by 30% for 2 seconds. Agoroth can move while the zone is active, but his movement speed is reduced by 50%. Channels for 1 second to initiate, zone lasts 4 seconds.

Lines: Movement --- "Hunting the unwary." "They shall know my wrath!" "A wraith knows no fear." "No one escapes a relentless foe." (yeah i know, that's a weak one :/ )

        Taunt --- "Come, test yourself against the Shadow Isles best."
                       "Your spirit shall serve me well!"
                       "My spirits want some company!"

         Joke --- "You can kill the body, but the spirits will--" *spirits fly away* "Hey! Get back here!"
                      "My spirits will devour-" *spirits start to devour Agoroth* "NOT ME YOU FOOLS!"

         Death --- "The spirits...are eternal...."
                        "My body...fails me...."
                        "The spirits will...avenge me..."

Anyway, that's Agoroth! If you have suggestions for him, please don't hesitate to let me know. This is my first concept post, so I don't expect everyone to be amazed or anything. If you have suggestions to improve the quality of my future posts, that would also be appreciated; I know there's room to improve.

Thanks to you all, and may Agoroth never hunt you! (unless he somehow get into the Rift ;) )