Blood Return

Target either you or an ally within the spells range who has just taken damage from a single attack from a creature also within the spell's range. You may use your reaction to allow the target to gain temporary hit points equal to the damage that was taken + an additional bonus equal to your spell attack modifier which lasts for the duration of the spell.  

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the range increases by 15ft for each slot level above 2nd.