Endurance

You imbue a creature with with the might to resist blows when in dire situations.

For the duration, when a target is hit with a weapon attack, it can use its reaction to reduce the damage. The reduction is equal to your spellcasting ability modifier plus the spells level. The damage can't be reduced below 1. The creature can reduce the damage again, but only after it has failed on a saving throw. This spell ends when damage has been reduced two times or when you cast the spell again.