Nixie dust

When lightly sprinkled, pixie dust has been known to cause a creature or object to levitate or even fly for a limited time. Nixie dust on the other hand has quite different properties which are made evident when the substance is inhaled in concentrated quantities.

Psychedelic Heights. When you inhale one dose of this dust, for the next minute you experience a fantastical euphoria and are hasted (as the haste spell with no concentration required).

Overdose. After inhaling 2 or more doses of nixie dust in a single hour you make a Constitution saving throw (DC 13 + the number of doses taken) or take 11 (2d10) poison damage and become poisoned for 1 hour per dose. On a critical failure you fall unconscious, drop to 0 hit points, and begin making death saving throws. On a critical success, the effect duration increases to 10 minutes, however at the end of the duration you suffer a level of fatigue and a level of strife.