Return from your graveyard to the battlefield any number of target creature cards that each have a different mana value X or less.

As Agadeem, the Undercrypt enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

{T}: Add {B}.

Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate.

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

Flying, double strike

Whenever a creature you control deals combat damage to a player, you and that player each gain that much life.

At the beginning of your end step, if you have at least 15 life more than your starting life total, each player Angel of Destiny attacked this turn loses the game.

Flying

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

When Angelheart Protector enters the battlefield, target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Whenever you gain life for the first time each turn, create a 1/1 white Cat creature token.

{2}{W}: Another target Cleric gains lifelink until end of turn.

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.

Whenever you gain life, put a +1/+1 counter on Bloodbond Vampire.

When Bulwark Giant enters the battlefield, you gain 5 life.

{1}, {T}, Sacrifice another creature: You gain life equal to the sacrificed creature's toughness. Draw a card.

Sacrifice Children of Korlis: You gain life equal to the life you've lost this turn. (Damage causes loss of life.)

Whenever another Cleric enters the battlefield under your control, you gain 1 life.

Whenever you gain life for the first time each turn, put a +1/+1 counter on Cleric of Life's Bond.

Mutate {2}{W}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Lifelink

Whenever this creature mutates, create two 1/1 white Cat creature tokens with lifelink.

Daxos's toughness is equal to your devotion to white. (Each {W} in the mana costs of permanents you control counts toward your devotion to white.)

Whenever another creature you control enters the battlefield or dies, you gain 1 life.

Each opponent loses two times X life. You gain life equal to the life lost this way.

Flying

Whenever you gain life, target opponent loses that much life.

When Demon's Disciple enters the battlefield, each player sacrifices a creature or planeswalker.

When Duskfang Mentor enters the battlefield, put a lifelink counter on target non-Human creature you control.

{1}{B}, {T}: Put a +1/+1 counter on each creature you control with lifelink.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

When Fiend Hunter enters the battlefield, you may exile another target creature.

When Fiend Hunter leaves the battlefield, return the exiled card to the battlefield under its owner's control.

As long as it's your turn, Gideon Blackblade is a 4/4 Human Soldier creature with indestructible that's still a planeswalker.

Prevent all damage that would be dealt to Gideon Blackblade during your turn.

+1: Up to one other target creature you control gains your choice of vigilance, lifelink, or indestructible until end of turn.

-6: Exile target nonland permanent.

Deathtouch, lifelink

Flying, lifelink

Flying

Whenever Herald of Faith attacks, you gain 2 life.

Whenever another creature enters the battlefield under your control, you gain 1 life.

+1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it.

-1: Put a card you own with a silver counter on it from exile into your hand.

-2: Create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.

Whenever Kor Celebrant or another creature enters the battlefield under your control, you gain 1 life.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

When Legion's Landing enters the battlefield, create a 1/1 white Vampire creature token with lifelink.

When you attack with three or more creatures, transform Legion's Landing.

(Transforms from Legion's Landing.)

{T}: Add {W}.

{2}{W}, {T}: Create a 1/1 white Vampire creature token with lifelink.

Whenever a creature you control dies, draw a card.

+1: Create a 2/2 black Zombie creature token.

-4: Each player sacrifices two creatures.

-9: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest.

{1}, {T}: You gain 1 life. Put a brick counter on Luxa River Shrine.

{T}: You gain 2 life. Activate only if there are three or more brick counters on Luxa River Shrine.

Whenever you gain life, each opponent loses 1 life.

{1}, Reveal X white cards from your hand, Sacrifice Martyr of Sands: You gain three times X life.

Imprint -- Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with Mimic Vat to its owner's graveyard.

{3}, {T}: Create a token that's a copy of a card exiled with Mimic Vat. It gains haste. Exile it at the beginning of the next end step.

At the beginning of each combat, creatures you control gain first strike until end of turn if a creature you control has first strike. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, and vigilance.

Lifelink

Whenever Orah, Skyclave Hierophant or another Cleric you control dies, return target Cleric card with lesser mana value from your graveyard to the battlefield.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

When Rambunctious Mutt enters the battlefield, destroy target artifact or enchantment an opponent controls.

{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."

You gain 3 life.

Draw a card.

Whenever you gain life, target opponent loses that much life.

This spell costs {3} less to cast if you've gained 3 or more life this turn.

Return up to two target creature cards from your graveyard to your hand.

Flying

Whenever you gain life, put a +1/+1 counter on Scion of the Swarm.

Scoured Barrens enters the battlefield tapped.

When Scoured Barrens enters the battlefield, you gain 1 life.

{T}: Add {W} or {B}.

Serra Avatar's power and toughness are each equal to your life total.

When Serra Avatar is put into a graveyard from anywhere, shuffle it into its owner's library.

At the beginning of your end step, if you gained 3 or more life this turn, return Silversmote Ghoul from your graveyard to the battlefield tapped.

{1}{B}, Sacrifice Silversmote Ghoul: Draw a card.

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

+2: Sorin Markov deals 2 damage to any target and you gain 2 life.

-3: Target opponent's life total becomes 10.

-7: You control target player during that player's next turn.

+1: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its mana value.

-X: Sorin, Grim Nemesis deals X damage to target creature or planeswalker and you gain X life.

-9: Create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the highest life total among all players.

As long as it's your turn, creatures and planeswalkers you control have lifelink.

+2: Sorin, Vengeful Bloodlord deals 1 damage to target player or planeswalker.

-X: Return target creature card with mana value X from your graveyard to the battlefield. That creature is a Vampire in addition to its other types.

Whenever another creature enters the battlefield, you gain 1 life.

{T}: You gain 1 life.

Create X 1/1 white Pegasus creature tokens with flying, where X is your life total.

Enchant creature

Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.)

Exile Teferi's Protection.

Flying

Whenever Vampire Envoy becomes tapped, you gain 1 life.

Flying

{B}, Pay 2 life: Target creature gets -1/-1 until end of turn.

Whenever you lose life, draw that many cards. (Damage causes loss of life.)

Whenever you gain life, target opponent loses that much life.

{3}{B}{B}: Creatures you control gain lifelink until end of turn.

{1}{W}{B}: Target creature gains lifelink until end of turn.

{1}{W}{B}: Whenever you gain life this turn, each opponent loses that much life.