Adrenaline Spike

You fuel a willing creature that is not a Construct or Undead with a burst of supernatural energy. This energy temporarily increases the target's speed by 10 feet and reduces the target's levels of exhaustion by 1 until the spell ends. When the spell ends, the creature must succeed on a DC 12 Constitution saving throw or suffer the exhaustion this spell reduced.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you reduce an additional level of exhaustion for each slot level above 3rd. The DC of the saving throw the target makes increases by 2 for each additional level of exhaustion this spell reduces. When you cast this spell with a spell slot of 8th level or higher, the target does not have to make a Constitution saving throw when this spell ends.