When you drink this potion, you gain the effect of the haste spell until the end of your next turn(no concentration required).

The potion's yellow fluid is streaked with black and swirls on its own.

After each round of haste with this potion if more than one potion has been drunk within ten minutes roll a constitution saving throw DC 8 for exhaustion. Consecutive consumption of this within the same minute will increase the DC by 2 after every 6 seconds or a round of combat affected by the potion such as 8, 10, 12, 14, 16, 18, 20.

This means that in the first round you would have a DC of 8, the next round would have a DC of 10, the following would have 12, and so on.

This potion will likewise wake a creature from a magical sleep.

Notes: Buff, Movement, Consumable