Warding Bond

Action Touch V, S, M
(platinum rings, 50gp each) 1h
While the target is within 60 feet of you, it gains
a +1 bonus to AC and saving throws, and it has
resistance to all damage. Also, each time it takes
damage, you take the same amount of damage.
The spell ends if you drop to 0 hit points or if
you and the target become separated by more
than 60ft. It also ends if the spell is cast again on
either of the connected creatures. You can also
dismiss the spell as an action.