Gloves of Soul Catching

(requires attunement)
•Your Constitution score is 20 while you wear these gloves.
•After making a successful unarmed strike, it deals an additional 2d1 0 force damage, and you regain hit points equal to that extra damage. Alternatively, instead of regaining hit points in this way, you can choose to gain advantage on one attack roll, ability check, or saving throw
you make before the end of your next turn.