Songstitcher

{1}{W}: Prevent all combat damage that would be dealt this turn by target attacking creature with flying.

The Wanderer

Prevent all noncombat damage that would be dealt to you and other permanents you control.
−2: Exile target creature with power 4 or greater.

Relic Vial

{2}, {T}, Sacrifice a creature: Draw a card.
As long as you control a Cleric, Relic Vial has "Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life."

Leyline of Hope

If Leyline of Hope is in your opening hand, you may begin the game with it on the battlefield.
If you would gain life, you gain that much life plus 1 instead.
As long as you have at least 7 life more than your starting life total, creatures you control get +2/+2.

Cleric Class

(Gain the next level as a sorcery to add its ability.)
If you would gain life, you gain that much life plus 1 instead.
{3}{W}: Level 2
Whenever you gain life, put a +1/+1 counter on target creature you control.
{4}{W}: Level 3
When this Class becomes level 3, return target creature card from your graveyard to the battlefield. You gain life equal to that creature's toughness.

Impassioned Orator

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

Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Authority of the Consuls

Creatures your opponents control enter tapped.
Whenever a creature an opponent controls enters, you gain 1 life.

True Conviction

Creatures you control have double strike and lifelink.

Weathered Wayfarer

{W}, {T}: Search your library for a land card, reveal it, put it into your hand, then shuffle. Activate only if an opponent controls more lands than you.

Ancestor's Prophet

Tap five untapped Clerics you control: You gain 10 life.

Sigil of the New Dawn

Whenever a creature is put into your graveyard from the battlefield, you may pay {1}{W}. If you do, return that card to your hand.

Atalya, Samite Master

{X}, {T}: Choose one —
• Prevent the next X damage that would be dealt to target creature this turn. Spend only white mana on X.
• You gain X life. Spend only white mana on X.

Marble Diamond

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

Battlefield Medic

{T}: Prevent the next X damage that would be dealt to target creature this turn, where X is the number of Clerics on the battlefield.

Worship

If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Confessor

Whenever a player discards a card, you may gain 1 life.

Shieldmage Elder

Tap two untapped Clerics you control: Prevent all damage target creature would deal this turn.
Tap two untapped Wizards you control: Prevent all damage target spell would deal this turn.

Unbreakable Formation

Creatures you control gain indestructible until end of turn.
Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

Heraldic Banner

As this artifact enters, choose a color.
Creatures you control of the chosen color get +1/+0.
{T}: Add one mana of the chosen color.

Clergy en-Vec

{T}: Prevent the next 1 damage that would be dealt to any target this turn.

Militant Monk

Vigilance
{T}: Prevent the next 1 damage that would be dealt to any target this turn.

Death Speakers

Nyx Lotus

Nyx Lotus enters tapped.
{T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

Righteous Aura

{W}, Pay 2 life: The next time a source of your choice would deal damage to you this turn, prevent that damage.

Sanctum Custodian

{T}: Prevent the next 2 damage that would be dealt to any target this turn.

Field Surgeon

Tap an untapped creature you control: Prevent the next 1 damage that would be dealt to target creature this turn.

Pariah's Shield

All damage that would be dealt to you is dealt to equipped creature instead.
Equip {3}

Stern Judge

{T}: Each player loses 1 life for each Swamp they control.

Beloved Chaplain

Devout Chaplain

{T}, Tap two untapped Humans you control: Exile target artifact or enchantment.

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.

Witch Hunter

{T}: Witch Hunter deals 1 damage to target player or planeswalker.
{1}{W}{W}, {T}: Return target creature an opponent controls to its owner's hand.

Inner Sanctum

Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Prevent all damage that would be dealt to creatures you control.

Whipgrass Entangler

{1}{W}: Until end of turn, target creature gains "This creature can't attack or block unless its controller pays {1} for each Cleric on the battlefield."

Ajani's Welcome

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

Soul Warden

Whenever another creature enters, you gain 1 life.

Brave the Sands

Creatures you control have vigilance.
Each creature you control can block an additional creature each combat.

Samite Herbalist

Whenever Samite Herbalist becomes tapped, you gain 1 life and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Pariah

Enchant creature
All damage that would be dealt to you is dealt to enchanted creature instead.

Master Apothecary

Tap an untapped Cleric you control: Prevent the next 2 damage that would be dealt to any target this turn.

Cosmos Elixir

At the beginning of your end step, draw a card if your life total is greater than your starting life total. Otherwise, you gain 2 life.

Hazduhr the Abbot

{X}, {T}: The next X damage that would be dealt this turn to target white creature you control is dealt to Hazduhr the Abbot instead.

Mangara, the Diplomat

Lifelink
Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, draw a card.
Whenever an opponent casts their second spell each turn, draw a card.

Well of Lost Dreams

Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards.

Akroma's Devoted

Divine Presence

If a source would deal 4 or more damage to a permanent or player, that source deals 3 damage to that permanent or player instead.

Blind Obedience

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Artifacts and creatures your opponents control enter tapped.