Shattered Angel

Flying
Whenever a land an opponent controls enters, you may gain 3 life.

Goldnight Redeemer

Flying
When Goldnight Redeemer enters, you gain 2 life for each other creature you control.

Angel of Mercy

Flying
When Angel of Mercy enters, you gain 3 life.

Herald of the Sun

Flying
{3}{W}: Put a +1/+1 counter on another target creature with flying.

Seraph of Dawn

Impassioned Orator

Whenever another creature you control enters, you gain 1 life.

Sunblade Angel

Flying, first strike, vigilance, lifelink

Ajani's Sunstriker

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

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Angel of Renewal

Flying
When Angel of Renewal enters, you gain 1 life for each creature you control.

Arrows of Justice

Arrows of Justice deals 4 damage to target attacking or blocking creature.

Herald of Faith

Flying
Whenever this creature attacks, you gain 2 life.

Plains

Serra's Guardian

Flying (This creature can't be blocked except by creatures with flying or reach.)
Vigilance (Attacking doesn't cause this creature to tap.)
Other creatures you control have vigilance.

Angel of Vitality

Flying
If you would gain life, you gain that much life plus 1 instead.
This creature gets +2/+2 as long as you have 25 or more life.