Blessed Sanctuary

Prevent all noncombat damage that would be dealt to you and creatures you control.
Whenever a nontoken creature you control enters, create a 2/2 white Unicorn creature token.

Personal Sanctuary

During your turn, prevent all damage that would be dealt to you.

Muzzle

Enchant creature
Prevent all damage that would be dealt by enchanted creature.

Penance

Put a card from your hand on top of your library: The next time a black or red source of your choice would deal damage this turn, prevent that damage.

Protection of the Hekma

If a source an opponent controls would deal damage to you, prevent 1 of that damage.

Ajani's Mantra

At the beginning of your upkeep, you may gain 1 life.

Sphere of Purity

If an artifact would deal damage to you, prevent 1 of that damage.

Mountain

Alabaster Leech

White spells you cast cost {W} more to cast.

Angelic Chorus

Whenever a creature you control enters, you gain life equal to its toughness.

Circle of Protection: Artifacts

{2}: The next time an artifact source of your choice would deal damage to you this turn, prevent that damage.

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Aegis of Honor

{1}: The next time an instant or sorcery spell would deal damage to you this turn, that spell deals that damage to its controller instead.