Zeal

Zeal is a combat enhancing stimulant, brewed from the distilled demon ichor. It appears as a thick, purple colored liquid that tastes of ash.

Properties
When drunk or applied to the skin as an action, the user of zeal must make a DC 12 Constitution saving throw, becoming paralyzed for 1d4 rounds on a failed save as their muscles seize up. On a success, the user's weapon attacks deal 1d6 additional damage for one minute. After this time, the user gains one level of exhaustion, regardless of the saving throw result.

Behind the scenes
In the original Tal'Dorei Campaign Setting, Zeal was created from quaggoth blood rather than demon ichor. Additionally, the original effect of zeal upon a successful saveing throw was melee attacks dealing 3 additional damage for 2d6 rounds.