As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.
5 /
4
{W}{W}
Auriok Champion
Creature - Human Cleric
Protection from black and from red
Whenever another creature enters the battlefield, you may gain 1 life.
1 /
1
{1}{W}
Avacynian Priest
Creature - Human Cleric
{1}, {T}: Tap target non-Human creature.
1 /
2
{4}{W}
Aven of Enduring Hope
Creature - Bird Cleric
Flying
When Aven of Enduring Hope enters the battlefield, you gain 3 life.
3 /
3
{1}{W}
Battlefield Medic
Creature - Human Cleric
{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.
1 /
1
{1}{W}
Beloved Chaplain
Creature - Human Cleric
Protection from creatures
1 /
1
{3}{W}
Blessed Orator
Creature - Human Cleric
Other creatures you control get +0/+1.
1 /
4
{3}{W}
Builder's Blessing
Enchantment
Untapped creatures you control get +0/+2.
{2}{B}
Cabal Archon
Creature - Human Cleric
{B}, Sacrifice a Cleric: Target player loses 2 life and you gain 2 life.
2 /
2
{2}{B}{B}
Cabal Executioner
Creature - Human Cleric
Whenever Cabal Executioner deals combat damage to a player, that player sacrifices a creature.
Morph {3}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
2 /
2
{6}
Caged Sun
Artifact
As Caged Sun enters the battlefield, choose a color.
Creatures you control of the chosen color get +1/+1.
Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.
{W}
Cathedral Sanctifier
Creature - Human Cleric
When Cathedral Sanctifier enters the battlefield, you gain 3 life.
1 /
1
{W}
Confessor
Creature - Human Cleric
Whenever a player discards a card, you may gain 1 life.
1 /
1
{1}{B}
Contaminated Ground
Enchantment - Aura
Enchant land
Enchanted land is a Swamp.
Whenever enchanted land becomes tapped, its controller loses 2 life.
{W}
Devoted Caretaker
Creature - Human Cleric
{W}, {T}: Target permanent you control gains protection from instant spells and from sorcery spells until end of turn.
1 /
2
{2}{W}
Devout Chaplain
Creature - Human Cleric
{T}, Tap two untapped Humans you control: Exile target artifact or enchantment.
2 /
2
{3}{W}{W}
Dictate of Heliod
Enchantment
Flash
Creatures you control get +2/+2.
{1}{B}
Doom Blade
Instant
Destroy target nonblack creature.
{3}{W}
Doubtless One
Creature - Cleric Avatar
Doubtless One's power and toughness are each equal to the number of Clerics on the battlefield.
Whenever Doubtless One deals damage, you gain that much life.
* /
*
{1}{W}{B}
Edgewalker
Creature - Human Cleric
Cleric spells you cast cost {W}{B} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a Cleric spell with mana cost {1}{W}, it costs {1} to cast.)
2 /
2
--
Emeria, the Sky Ruin
Land
Emeria, the Sky Ruin enters the battlefield tapped.
At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield.
{T}: Add {W}.
--
Forsaken Sanctuary
Land
Forsaken Sanctuary enters the battlefield tapped.
{T}: Add {W} or {B}.
{2}{W}
Frontline Medic
Creature - Human Cleric
Battalion -- Whenever Frontline Medic and at least two other creatures attack, creatures you control gain indestructible until end of turn.
Sacrifice Frontline Medic: Counter target spell with {X} in its mana cost unless its controller pays {3}.
3 /
3
{5}
Gilded Lotus
Artifact
{T}: Add three mana of any one color.
{4}{W}{W}
Glarecaster
Creature - Bird Cleric
Flying
{5}{W}: The next time damage would be dealt to Glarecaster and/or you this turn, that damage is dealt to any target instead.
3 /
3
{1}{W}
Hanweir Militia Captain
Creature - Human Soldier
At the beginning of your upkeep, if you control four or more creatures, transform Hanweir Militia Captain.
2 /
2
--
Westvale Cult Leader
Creature - Human Cleric
Westvale Cult Leader's power and toughness are each equal to the number of creatures you control.
At the beginning of your end step, create a 1/1 white and black Human Cleric creature token.
2 /
2
{1}{B}
Headhunter
Creature - Human Cleric
Whenever Headhunter deals combat damage to a player, that player discards a card.
Morph {B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
1 /
1
{3}{W}
Healer of the Pride
Creature - Cat Cleric
Whenever another creature enters the battlefield under your control, you gain 2 life.
2 /
3
{W}{B}
High Priest of Penance
Creature - Human Cleric
Whenever High Priest of Penance is dealt damage, you may destroy target nonland permanent.
1 /
1
{3}{W}
Holy Justiciar
Creature - Human Cleric
{2}{W}, {T}: Tap target creature. If that creature is a Zombie, exile it.
2 /
1
{2}
Jet Medallion
Artifact
Black spells you cast cost {1} less to cast.
{2}{W}
Kor Sanctifiers
Creature - Kor Cleric
Kicker {W} (You may pay an additional {W} as you cast this spell.)
When Kor Sanctifiers enters the battlefield, if it was kicked, destroy target artifact or enchantment.
2 /
3
{1}{B}{B}
Liliana, Heretical Healer
Legendary Creature - Human Cleric
Lifelink
Whenever another nontoken creature you control dies, exile Liliana, Heretical Healer, then return her to the battlefield transformed under her owner's control. If you do, create a 2/2 black Zombie creature token.
2 /
3
--
Liliana, Defiant Necromancer
Legendary Planeswalker - Liliana
+2: Each player discards a card.
-X: Return target nonlegendary creature card with mana value X from your graveyard to the battlefield.
-8: You get an emblem with "Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step."
2 /
3
{3}{W}{W}
Loxodon Mystic
Creature - Elephant Cleric
{W}, {T}: Tap target creature.
3 /
3
{3}
Manalith
Artifact
{T}: Add one mana of any color.
{2}{B}
Merciless Eternal
Creature - Zombie Cleric
Afflict 2 (Whenever this creature becomes blocked, defending player loses 2 life.)
{2}{B}, Discard a card: Merciless Eternal gets +2/+2 until end of turn.
2 /
2
{X}{W}
Mikaeus, the Lunarch
Legendary Creature - Human Cleric
Mikaeus, the Lunarch enters the battlefield with X +1/+1 counters on it.
{T}: Put a +1/+1 counter on Mikaeus.
{T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.
0 /
0
{1}{W}
Monk Realist
Creature - Human Monk Cleric
When Monk Realist enters the battlefield, destroy target enchantment.
1 /
1
{W}
Mother of Runes
Creature - Human Cleric
{T}: Target creature you control gains protection from the color of your choice until end of turn.
1 /
1
--
Orzhov Basilica
Land
Orzhov Basilica enters the battlefield tapped.
When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{B}.
{2}
Orzhov Signet
Artifact
{1}, {T}: Add {W}{B}.
{2}{W}
Pious Evangel
Creature - Human Cleric
Whenever Pious Evangel or another creature enters the battlefield under your control, you gain 1 life.
{2}, {T}, Sacrifice another permanent: Transform Pious Evangel.
2 /
2
--
Wayward Disciple
Creature - Human Cleric
Whenever Wayward Disciple or another creature you control dies, target opponent loses 1 life and you gain 1 life.
2 /
2
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{4}{B}{B}
Pontiff of Blight
Creature - Zombie Cleric
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.)
Other creatures you control have extort. (If a creature has multiple instances of extort, each triggers separately.)
2 /
7
{2}{B}
Priest of Gix
Creature - Phyrexian Human Cleric Minion
When Priest of Gix enters the battlefield, add {B}{B}{B}.
2 /
1
{2}{B}{B}
Profane Prayers
Sorcery
Profane Prayers deals X damage to any target and you gain X life, where X is the number of Clerics on the battlefield.
{2}{W}
Scholar of Athreos
Creature - Human Cleric
{2}{B}: Each opponent loses 1 life. You gain life equal to the life lost this way.
1 /
4
--
Scoured Barrens
Land
Scoured Barrens enters the battlefield tapped.
When Scoured Barrens enters the battlefield, you gain 1 life.
{T}: Add {W} or {B}.
{1}{W}
Selfless Spirit
Creature - Spirit Cleric
Flying
Sacrifice Selfless Spirit: Creatures you control gain indestructible until end of turn.
2 /
1
{5}{W}
Shieldmage Elder
Creature - Human Cleric Wizard
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.
2 /
3
{1}{W}
Sigardian Priest
Creature - Human Cleric
{1}, {T}: Tap target non-Human creature.
1 /
2
{W}
Soul Warden
Creature - Human Cleric
Whenever another creature enters the battlefield, you gain 1 life.
1 /
1
{W}
Soul's Attendant
Creature - Human Cleric
Whenever another creature enters the battlefield, you may gain 1 life.
1 /
1
{W}
Soulmender
Creature - Human Cleric
{T}: You gain 1 life.
1 /
1
{0}
Spellbook
Artifact
You have no maximum hand size.
--
Starlit Sanctum
Land
{T}: Add {C}.
{W}, {T}, Sacrifice a Cleric creature: You gain life equal to the sacrificed creature's toughness.
{B}, {T}, Sacrifice a Cleric creature: Target player loses life equal to the sacrificed creature's power.
{1}{W}
Suture Priest
Creature - Phyrexian Cleric
Whenever another creature enters the battlefield under your control, you may gain 1 life.
Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.
1 /
1
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{3}{B}
Syphon Mind
Sorcery
Each other player discards a card. You draw a card for each card discarded this way.
{3}{W}
Teroh's Faithful
Creature - Human Cleric
When Teroh's Faithful enters the battlefield, you gain 4 life.
1 /
4
{W}{B}
Underworld Coinsmith
Enchantment Creature - Human Cleric
Constellation -- Whenever Underworld Coinsmith or another enchantment enters the battlefield under your control, you gain 1 life.
{W}{B}, Pay 1 life: Each opponent loses 1 life.
2 /
2
--
Vault of the Archangel
Land
{T}: Add {C}.
{2}{W}{B}, {T}: Creatures you control gain deathtouch and lifelink until end of turn.
{2}{B}{B}
Vile Deacon
Creature - Human Cleric
Whenever Vile Deacon attacks, it gets +X/+X until end of turn, where X is the number of Clerics on the battlefield.
2 /
2
{1}{W}
War Priest of Thune
Creature - Human Cleric
When War Priest of Thune enters the battlefield, you may destroy target enchantment.
2 /
2
{2}{W}
Whipgrass Entangler
Creature - Human Cleric
{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."
1 /
3
{3}{B}
Whisper, Blood Liturgist
Legendary Creature - Human Cleric
{T}, Sacrifice two creatures: Return target creature card from your graveyard to the battlefield.