Cheryn, the Irradiated Overlord
Lore: Go ham and make your own. Lore isn't my thing.
Passive: Core Instability: Replacing Cheryn's mana bar is a Radiation bar. Every spell cast increases his radiation by 10, up to 1000. Cheryn gains 35% of his Radiation as AP If Cheryn reaches 1000 Radiation and takes damage, he becomes immobile and channels for 3 seconds. After, he explodes, dealing 100% of his AP as true damage to all enemy champions within a 300 unit radius of himself.
Q: Criticality Failure: Cheryn throws a chunk of radioactive metal at target location. The metal has 200% of Cheryn's AP as HP and 0 armor/mr. While the metal is on the field, enemy champions within 800 units have their HP reduction per second reduced to zero and take 5 / 10 / 15 / 20 / 25 true damage (+1 per 35 AP) per second. If Cheryn stands in the AoE of Criticality failure, he gains Radiation equal to the damage that this ability deals every second. The metal chunks last 5 minutes, or until destroyed. Cheryn can store up to 2 Criticality Failures at a time.
W: Nuclear Reactor: Passive: Cheryn passively emits a wave of radiation, dealing 1 / 2 / 3 / 4 / 5% of all enemy champion's HP as true damage.
Active: Cheryn fires a concentrated blast of radiation to target enemy, dealing 70 / 100 / 130 / 160 / 190 magic damage (+0.75 per AP) and marking them with Radiation Sickness for 6 seconds. Marked enemy champions take double true damage from Cheryn and take 10 / 15 / 20 / 25 / 30% increased damage from his magic damage.
E: Fission: Passive: All Criticality Failures within 500 units of each other create a small wall between them that deals 70 / 100 / 130 / 150 / 170 (+0.15 per AP) magic damage every second.
Active: Cheryn causes target Criticality Failure to immediately explode, dealing 60 / 90 / 120 / 150 / 180 magic damage (+0.45 per AP) to explode. If the Criticality Failure was linked to another by a wall, the damage is increased by 25% for each wall attached.
Being inside a Criticality's explosion will REDUCE Cheryn's radiation by 25%, with an additional 10% per wall and heals him by half the amount of radiation removed.
R: Catastrophic Meltdown: After a 0.75 second delay, Cheryn causes the matter in target area of 400 unit radius to instantly fission, dealing 100 / 200 / 300 true damage (+0.5 per AP) to ALL units. (Enemy and ally) For the next 10 second, the targetted area becomes Irradiated, slowing all enemies by 45% and dealing 15 / 25 / 35 / 45 / 55 true damage (+0.10 per AP) every second.
Pros: TONS OF DAMAGE Healing Potions don't work in his AoE
Cons: No mobility No escapes actually If you go too ham, you die