Vhar'Gha- The Void's Plague

The Void has grasped the concept of a plague. So naturally the void corrupts a human , and then gives that corrupted person the power to spread this plague.

In game Vhar' Gha is a melee mage who can be played in mid lane or top lane. I imagine him it to be a vaguely human form who shambles on three limbs while keeping an arm at the ready. His spells mainly utilize glowing purple liquid. Note that he is not much tankier than most mages

Passive: Infectious Presence Basic attacking an enemy afflicts them with a stack of Infectious Presence upon reaching 4 stacks, an enemy will take 20-300 (levels 1-18)+(55% ability power) damage over the next 3 seconds. During this time their magic resist is reduced by 25%.

**Q: Caustic Substances ** Vhar' Gha flings caustic purple liquid all around him. Dealing 40/60/80/100/120+(50% ability power) damage to all nearby enemies. area of effect: 200 cooldown: 7/6/5/4/3

W: Plague Nest

Passive: Champion takedowns will leave a plague nest where that champion died.

Active: Spawns a plague nest at a target location. Plague radiates from these nests in an area around them. If an enemy walks too close to a plague nest and stays within their effect for 3 seconds they will take 10/30/50/70/90+(20% ability power) damage each second for 4 seconds. The duration of this affect will be refreshed as long as they stay near a plague nest. This ability can hold 2 charges. Cooldown: 2 Charge time: 17/16/15/14/13 Radius of effect 350

E: Mark of the Damned After a delay of 0.5 seconds Vhar’ Gha hurls an orb in a target direction. Upon hitting an enemy champion the orb infects them, dealing 100/150/200/250/300+(90% ability power) damage over the next 3 seconds. If this kills an enemy the enemy will explode the plague outwards, infecting nearby enemies. These newly infected enemies take 50/80/110/140/170+(60% ability power) damage over the next 3 seconds. Range: 550 Cooldown: 15/14/13/12/11 Explosion radius: 400

R: Voidplague Outbreak

Vhar’ Gha unleashes the power of a target Plague Nest, causing it to explode after a delay of 1 second. The explosion infects all enemies hit. The infection slows enemies by 30%, lowers their magic resist by 10/20/30%, and causes them to take 200/400/600+(120% ability power) damage over the next 4 seconds. Cooldown: 120/100/80 Cast range: 500 Explosion Radius:450

Pros: High DOT Good zoning

Cons Low range Not tanky

Please leave any thoughts you have on the concept. Thank you!