[Champion Concept] A'arden, The Mouth of the Void
Lore: Seething deep within the depths of the void, the abomination known as the A'arden has slumbered within the otherworldly Voidspace for centuries. But the Outside is stirring again - birthing monstrosities like Cho'gath and Vel'Koz, and tainting the minds of those who seek to learn of the Void like the magician Malzahar or the seeker Kassadin. Vel'Koz, observing and learning about the realm that the Void is soon to invade, has reported his findings back to the Outside and the twisted, alien mind of the Void has awoken one of its prime creations: The Mouth of the Void. A mass of tentacles shaped roughly like the body of a man, the Mouth's only goal is to devour the new world that has been connected to the Void. He speaks in gibberish, the madness of the Void dribbling from his horrifying maw.
Insane Muttering (passive): Basic attacks against the Mouth of the Void give a penalty of 5 to the attacker, stacking up to four times.
Twisted Lash: A'arden extends his arm, slapping with a curving motion in front of himself and dealing damage to all enemies hit. Cost 60 mana. Range 750. Deals 70/100/130/160/200 (+70% AD) physical damage.
Nether Spit: A'arden vomits forth a sticky substance which slows enemies passing through it. Cost: 70/80/90/100/110 Mana. Lasts 6 seconds. Slows enemies by 30/40/50/60/70% (lasts 1 second after leaving area).
Void Sheathe: Coated in the essence of the Void, A'arden takes less damage and can activate this ability to raise his Magic Resist and Ability Power. Cost 50/55/60/65/70 Mana. Passive: A'arden's armor is increased by 10/15/20/25/30. Active: Ability Power and Magic Resist are increased by 5/10/15/20/25
Devour/Singularity: A'arden attacks an enemy with the full length of his maw, dealing a large amount of physical damage and shrinking slightly in the process. Each successful Devour adds one stack, and at three stacks this ability transforms into Singularity which turns A'arden into a black hole when cast, pulling enemies in and dealing magic damage. The pull from Singularity lasts for 2 seconds. Cost 100 mana each. Devour deals 100/250/300 damage (+50% AD) to minions, monsters, or champions. Singularity deals 200/300/400 (+70% AP) damage and pulls nearby enemies in a set distance.
Appearance: A'arden appears as the silhouette of a man that is covered in seething shadow and a vague tentacle like mass. The air around him is darker than normal. When Void Sheathe is activated he appears to be encased in shadowy armor, but his arms still look like tentacles. When using Devour, it is revealed that his mouth opens from the top of his head straight down to below his chest (sort of like Carpenter's The Thing).
Role: the Mouth is a versatile champion that can play mid or top, or even work as a support. He deals consistent damage, and is a mix of Attack Damage and Ability Power. His Singularity ability can be devastating in teamfights, pulling enemies into range of his companion's ultimate abilities or dragging enemies off of a fragile ally. He has decent poke with his Lash attack, but is more useful standing toe to toe with enemies and lowering their Magic Resist by being targeted.
Please feel free to give some criticism and feedback, it is much appreciated! Thanks!