You learn the ways of Dr. Mundo

Heart Zapper

You can activate Rage as a reaction once per short or long rest.

When you enter Rage, you deal 1d4 + proficiency lightning damage to all creatures within 10 feet of you for every turn you are enraged (even outside your turn).

While enraged, you gain "Zap points" equal to a percent of the damage you take while enraged. When you exit Rage, you will heal equal to how many Zap point you gained while enraged. If you intentionally end rage early, you cannot start rage again until the end of your next turn.

Mundo Goes Where He Pleases

As a reaction, dispel or negate any and all conditions before they take effect; conditions such as Blinded, Charmed, Frightened, Deafened, Grappled, etc. Upon use, roll a dexterity saving throw with a DC of 18. If the save succeeds you heal 1d12 + proficiency bonus and reset the ability without the need of a long rest. If the save fails you must take a long rest to reset the ability.

Infected Strike

As a bonus action during your turn, infect your next attack at the cost of 5 health, but heal 10 health upon a successful hit (20 health on critical). In addition, add 1d6 + strength necrotic damage to the attack upon a successful hit and half the movement speed of the enemy hit.

Blunt Force Trauma

As an attack action, deal immense damage and send your opponents flying. You strike your foe with the back of your hand, dealing 3d10 + Strength modifier force damage. Damage die increase every other level after level 14. The opponent must also roll a strength save DC 16 or be knocked 10 feet back. If the opponent hits a wall, the opponent is stunned until the end of their next turn.

Maximum Dosage

Once per Long rest, as a bonus action, increase/decrease your current health to half your max health. If your health decreases to reach this value, gain temporary hit points equal to 2x your missing health. While Maximum Dosage is active, you may use Infected Strike at no cost to your health and as a repeatable free action, and your attacks per action are doubled. This effect along with the temporary hit points earned lasts for one round.