Serra Angel

Marble Diamond

Marble Diamond enters tapped.
{T}: Add {W}.

Daybreak Chaplain

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Plains

Disenchant

Serene Steward

Whenever you gain life, you may pay {W}. If you do, put a +1/+1 counter on target creature.

Aegis Angel

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Aegis Angel enters, another target permanent gains indestructible for as long as you control Aegis Angel. (Effects that say "destroy" don't destroy it. A creature with indestructible can't be destroyed by damage.)