Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Seraph of the Masses

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Flying
Seraph of the Masses's power and toughness are each equal to the number of creatures you control.

Divine Verdict

Destroy target attacking or blocking creature.

Resolute Archangel

Flying
When Resolute Archangel enters, if your life total is less than your starting life total, it becomes equal to your starting life total.

Avacyn's Collar

Equipped creature gets +1/+0 and has vigilance.
Whenever equipped creature dies, if it was a Human, create a 1/1 white Spirit creature token with flying.
Equip {2}

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.)

Mask of Avacyn

Equipped creature gets +1/+2 and has hexproof. (It can't be the target of spells or abilities your opponents control.)
Equip {3}

Sacred Armory

{2}: Target creature gets +1/+0 until end of turn.

Greymond, Avacyn's Stalwart

As Greymond, Avacyn's Stalwart enters, choose two abilities from among first strike, vigilance, and lifelink.
Humans you control have each of the chosen abilities.
As long as you control four or more Humans, Humans you control get +2/+2.

Tireless Missionaries

When Tireless Missionaries enters, you gain 3 life.

Congregate

Target player gains 2 life for each creature on the battlefield.

Wall of Essence

Defender (This creature can't attack.)
Whenever Wall of Essence is dealt combat damage, you gain that much life.

Avacyn, Guardian Angel

Flying, vigilance
{1}{W}: Prevent all damage that would be dealt to another target creature this turn by sources of the color of your choice.
{5}{W}{W}: Prevent all damage that would be dealt to target player or planeswalker this turn by sources of the color of your choice.

Plains

First Response

At the beginning of each upkeep, if you lost life last turn, create a 1/1 white Soldier creature token.

Avacynian Priest

Raise the Alarm

Create two 1/1 white Soldier creature tokens.

Lunarch Inquisitors

When this creature transforms into Lunarch Inquisitors, you may exile another target creature until Lunarch Inquisitors leaves the battlefield.

Avacynian Missionaries

At the beginning of your end step, if Avacynian Missionaries is equipped, transform it.

Avacynian Missionaries // Lunarch Inquisitors

Scroll of Avacyn

{1}, Sacrifice Scroll of Avacyn: Draw a card. If you control an Angel, you gain 5 life.