Path of the mad scientist

You are a scientist who rejected limits on ethics, safety, or sanity. Through volatile serums and dangerous experimentation, you push your body beyond mortal design. When you rage, it isn’t blind fury; it’s a triggered reaction.

Experimental Rage

When you enter a rage, you may activate one Battle Serum of your choice:

• Adrenal Surge — +10 ft movement and advantage on Strength checks

• Caustic Blood — melee attacks deal +1d6 acid damage

• Stone Serum — gain temporary HP equal to twice your Barbarian level

You may choose a different serum for each rage. The effect lasts while you are raging.

Reactive Formula

When a creature hits you with a melee attack while raging, you can use your reaction to trigger a small chemical effect:

• Push the creature 10 ft away

• Deal acid damage equal to your Constitution modifier

• Reduce the incoming damage by your proficiency bonus

Experimental Stacking

While raging, you may activate two Battle Serums at once, gaining both effects simultaneously.

Perfect Formula

Once per long rest, when you rage, you may activate all three Battle Serums at once with no risk.