Overhealing yourself or an ally grants them Health, Magicka, and Stamina Recovery equal to .5% of your Max Magicka, up to a cap of 150, for 6 seconds. This effect can occur once every 12 seconds per target.
Whenever you heal yourself or an ally under 25% Health, you grant them a damage shield that absorbs up to 2200 damage per stage, for 6 seconds. This effect can occur once every 30 seconds per target.
Whenever you remove a harmful effect from yourself or an ally, you sanctify the ground beneath them and heal them and allies within 8 meters for 1318 Health per stage. This effect can occur once every 10 seconds.
Healing yourself or an ally under 50% Health grants them Minor Heroism for 1 second for every 300 Magicka Recovery you have. This effect can occur once every 10 seconds per target.