Erevna’s Chakra Flood

You touch a willing humanoid, and imbue their chakra points with concentrated arcane energy to unlock their full potential. 

while effected by the spell, the target can make one additional unarmed strike attack when they take the attack action on their turn. Additionally, they regain the use of their reaction at the start of each creature’s turn, rather than the start of just their own. 

When the spell ends, the target must make a Constitution Saving Throw versus your Spell Save DC or gain one level of exhaustion.