Chain of Custody

As a Reaction when a Creature rolls  d20, you roll one too and they get the result you rolled and you get the result they rolled as your new stored roll, you may then as a reaction on each future turn continue to do this swapping your currently stored d20 with a Creature rolling a d20 thats within 60ft of, whatever the final result you are left with when this spell ends you heal for that amount.