Challenge

You bind the life force of the creature that triggered the attack to you. For the duration, the targeted creature can attack only you, and you have resistance against all damage received from the creature. In addition, if you take any damage from the targeted creature, they take the same amount of damage with weakness against it. Your concentration on this spell can't be broken by the targeted creature. However, if you take damage from another source, you have disadvantage on the saving throw to maintain concentration. On your turns, you must use your action to maintain this spell. Otherwise, it is dispelled and you and the targeted creature both receive one level of exhaustion.