A Balanced Mundo Rework Idea

As the title says...

Range: 200 (From 125)

Movement: 345

Passive: Adrenaline Rush

Every 8 seconds, restores 4/6/8% (Levels 1, 11, 16) of his maximum health over 3 seconds

Q: Infected Cleaver (8/7/6/5/4 second cooldown) (No cost) (1125 Target Range) tosses his cleaver at the enemy, dealing 8/9/10/11/12% of the target's maximum health in true damage, slowing the enemy by 80% for 2 seconds, and marking enemy champions for 10 seconds

Marked enemies provides additional bonuses in his other abilities and Infected Cleaver

Mark bonus: Deals double damage to melee champions; however, heals 6% of his maximum health against ranged champions

W: Burning Agony (8 second cooldown) (No Cost)

For the next 5 seconds's first basic attack against an enemy ignites them, dealing 70/110/150/190/230 magic damage (80% AD scaling/60% AP scaling) over 3 seconds

Mark bonus: Damage is doubled

E: Masochism (16/15/14/13/12 second cooldown) (No Cost) (800 Target Range)

charge in a targeted direction, knocking back enemies he collides with, and dealing 100/145/190/235/280 magic damage (60% AD scaling/40% AP scaling)

Mark bonus: shields himself for 12/13/14/15/16% of his maximum health for 5 seconds

R: Sadism (170 Effect Radius) (No Cost)

Passive: gains bonus 50/75/100 bonus attack damage

Activation: For the next 10 seconds, surrounds himself with fire, dealing 80/100/120 magic damage (100% AP Scaling) each second for the duration, gains 50% bonus movement speed all ranks and slowing targets for 60% each second of the duration

During this time, loses the passive on Sadism and cannot use his other abilities

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This rework makes into an AOE type juggernaut with many different build paths and making him a true manaless champion without health costs.