Least in WoW always wanted something like "beacon of atonement" for paladins.

For people who don't know. One of the priests healer specs Disciple have a buff "atonement" that they apply to people they heal, for then to heal them further when the priest deals damage.

While paladin have various beacons that makes certain heals hit a beaconed target as well as their main target. So a "beacon of atonement" would be a buff that heals a target when you attack an enemy.

Issue tho that the job would quickly be the go-to since dps matters over heals. Another being that the job would still need direct ranged/aoe heals or it wouldn't be useable in a multitude of fights for they would either be too far away from the enemy or ally.