Counter Shock

You touch a creature that has died within the last minute with your tools, one on the chest and one on the side of the heart, to shock them once per turn. The creature that is being affected by this spell can reroll their death saves, with every shock given to them. After three failed saves the spell ends and the creature is dead, but after three succseful saves the creature returns to life with 1 hit point. This spell can't return to life a creature that has died of old age, nor can it restore any missing body parts.