Divine Vigor

You draw forth pure, holy power to bolster your physical form. For the duration, when you fail a Strength, Dexterity, or Constitution ability check or saving throw, you can use your reaction to reroll the check or save, and you must use the new roll. 

In addition, once before the spell ends, when you make a weapon attack, you can add your spellcasting ability modifier to the attack and damage rolls of that attack.