A magical draught that puts the drinker into a temporarily enraged and powerful state. First seen as a corked potion gifted to you by Vrax at Kulbak Prison.

Staring down at your hands, you watch them balloon to twice their normal size. Your neck bulges and your prisoner’s uniform tears at the seams as your chest muscles pop out. - Crack in Kulbak (RPA-ADV5) 

The potion of strength must be ingested, and does not go down easily;

The potion is thick and sludgy and it sticks to your throat, but you nonetheless manage to drink it down to the last drop. You feel a tingling in your fingers almost immediately.

Suddenly, you feel a sharp pain in your throat as if you had swallowed a thousand needles. - Crack in Kulbak (RPA-ADV5)

Once consumed, the drinker temporarily transforms into a hulking version of themself, entering an enraged and raw state of increased strength wherein they lose their ability to discern friend and foe.

You feel your neck swell and the muscles in your arms expand so that your prisoner’s uniform rips at the seams.

You quickly chug down the potion, and the muscles throughout your body painfully enlarge and contract.

“Violence and anger are two well known side-effects of the potion’s formula,” Gundur warns. - Crack in Kulbak (RPA-ADV5)

The effect only lasts for a short while, and afterwards falls into a physically expended state;

With a sudden surge of rage, you charge out of the cell and begin attacking prisoners and guards alike, leaving a path of destruction in your wake.

The potion quickly wears off, and exhaustion sets in. - Crack in Kulbak (RPA-ADV5)

Crafted by the alchemists of Nalos, the potion purportedly has no or ill effect on Dragul physiology:

Gundur explains that Vrax has managed to smuggle a potion of strength into the prison, but it’s Nalos magic. It wasn’t designed to be used by the Dragul. - Crack in Kulbak (RPA-ADV5)

Vrax gives you the potion of strength in the in Kulbak Prison exercise yard in preparation of the upcoming riot by the inmates:

• If you drink it too early or break it before you were meant to use it, there will be no prison uprising.
• If you drink it at the smithy as Vrax told you, the prisoners are able to equip themselves with weapons and better make their escape.

You flip over your workbench. A guard sets loose an arrow from her crossbow, but you can barely feel the sting. As you grab the Construct charging toward you by the neck, the prisoners cheer. You effortlessly rip the iron gate from its hinges and the Dragul pour into the armory to grab whatever weapons they can. - Crack in Kulbak (RPA-ADV5)