Light of Promise

Enchant creature
Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."

Spirit Mantle

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

Holy Mantle

Enchant creature
Enchanted creature gets +2/+2 and has protection from creatures.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate.

Dazzling Reflection

You gain life equal to target creature's power. The next time that creature would deal damage this turn, prevent that damage.

Spirit Link

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
Whenever enchanted creature deals damage, you gain that much life.

Cathedral Sanctifier

When Cathedral Sanctifier enters the battlefield, you gain 3 life.