Dr. Mundo charges up a defibrilator, dealing 5/8.75/12.5/16.25/20 magic damage each second for up to 3 seconds to nearby enemies (Maximum damage: 80/140/200/260/320). While active he stores 80 - 95% of damage taken for the first 0.75 seconds, then 25% for the remaining duration as gray health and can Recast.
Recast: Detonate the defibrilator, dealing 30 (+7% of bonus Health) magic damage to nearby enemies. If this hits at least one champion, Dr. Mundo restores 100% of gray health. If only non-champions were hit, Dr. Mundo instead restores 100% of gray health.