First strike

Whenever a creature dealt damage by Abattoir Ghoul this turn dies, you gain life equal to that creature's toughness.

Whenever Agate-Blade Assassin attacks, defending player loses 1 life and you gain 1 life.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, put a +1/+1 counter on this creature. It gains deathtouch and indestructible until end of turn."

+1: You gain life equal to the number of creatures you control plus the number of planeswalkers you control.

−2: Create a 2/2 white Cat Soldier creature token named Ajani's Pridemate with "Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate."

0: If you have at least 15 life more than your starting life total, exile Ajani, Strength of the Pride and each artifact and creature your opponents control.

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

Flying

Whenever one or more creatures you control attack, you gain 1 life for each attacking creature.

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.

Whenever a creature you control enters, you gain life equal to its toughness.

Whenever Anje, Maid of Dishonor and/or one or more other Vampires you control enter, create a Blood token. This ability triggers only once each turn. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

, Sacrifice another creature or a Blood token: Each opponent loses 2 life and you gain 2 life.

Whenever a creature you control enters, you gain 1 life. If Answered Prayers isn't a creature, it becomes a 3/3 Angel creature with flying in addition to its other types until end of turn.

Vigilance

Whenever you attack, you create a Food token for each player being attacked. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, , Tap X untapped Foods you control: Create X 1/1 white Human creature tokens.

Vigilance

Whenever Aragorn and Arwen, Wed enters or attacks, put a +1/+1 counter on each other creature you control. You gain 1 life for each other creature you control.

Flying

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

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

Flying

Whenever Archon of Cruelty enters or attacks, target opponent sacrifices a creature or planeswalker of their choice, discards a card, and loses 3 life. You draw a card and gain 3 life.

Flying

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

Pegasus creatures you control have lifelink.

Constellation — Whenever an enchantment you control enters, create a 2/2 white Pegasus creature token with flying.

Enchant creature

Enchanted creature gets +2/+2 and has trample.

Whenever enchanted creature deals damage, you gain that much life.

Players can't cast spells from graveyards or activate abilities of cards in graveyards.

Whenever a creature dies, you gain 1 life.

Whenever Augury Adept deals combat damage to a player, reveal the top card of your library and put that card into your hand. You gain life equal to its mana value.

Protection from black and from red

Whenever another creature enters, you may gain 1 life.

Creatures your opponents control enter tapped.

Whenever a creature an opponent controls enters, you gain 1 life.

When you unlock this door, return all creature cards from your graveyard to the battlefield.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Whenever Ayara, First of Locthwain or another black creature you control enters, each opponent loses 1 life and you gain 1 life.

, Sacrifice another black creature: Draw a card.

Other red creatures you control get +1/+1.

Other white creatures you control get +1/+1.

Whenever you cast a red spell, Balefire Liege deals 3 damage to target player or planeswalker.

Whenever you cast a white spell, you gain 3 life.

Defender

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Flying

Whenever Basilica Stalker deals combat damage to a player, you gain 1 life and surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Flying, myriad

Whenever Battle Angels of Tyr deals combat damage to a player, draw a card if that player has more cards in hand than each other player. Then you create a Treasure token if that player controls more lands than each other player. Then you gain 3 life if that player has more life than each other player.

Whenever an Angel you control enters, you gain 4 life.

Whenever an Angel you control dies, create a 1/1 white Spirit creature token with flying.

Flying

Whenever Blim, Comedic Genius deals combat damage to a player, that player gains control of target permanent you control. Then each player loses life and discards cards equal to the number of permanents they control but don't own.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

Menace (This creature can't be blocked except by two or more creatures.)

Whenever you gain life, put a +1/+1 counter on Blood Researcher.

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. (Damage causes loss of life.)

Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

Flying, deathtouch

Whenever an opponent loses life, you gain that much life. (Damage causes loss of life.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Whenever a player casts a Goblin spell, you may pay . If you do, you gain 2 life.

Whenever you cast a spell, you may gain ½ life for each word in that spell's name.

Flying

Whenever you cast a Spirit or Arcane spell, you may gain life equal to that spell's mana value.

Each creature you control that's a Food or a Golem gets +2/+2 and has trample.

Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's a 1/1 Food Golem artifact creature in addition to its other types and it has ", , Sacrifice this artifact: You gain 3 life."

Whenever Bruse Tarl, Boorish Herder enters or attacks, target creature you control gains double strike and lifelink until end of turn.

Partner (You can have two commanders if both have partner.)

Whenever Cackling Culprit or another creature you control dies, you gain 1 life.

: Cackling Culprit gains deathtouch until end of turn.

Flying

Whenever a player sacrifices a permanent, put a +1/+1 counter on Carmen, Cruel Skymarcher and you gain 1 life.

Whenever Carmen attacks, return up to one target permanent card with mana value less than or equal to Carmen's power from your graveyard to the battlefield.

When this creature enters, create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")

Whenever you gain life for the first time during each of your turns, create a 1/1 white Cat creature token.

Deathtouch

At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls.

Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.

When Circle of Confinement enters, exile target creature an opponent controls with mana value 3 or less until Circle of Confinement leaves the battlefield.

Whenever an opponent casts a Vampire spell with the same name as a card exiled with Circle of Confinement, you gain 2 life.

(Gain the next level as a sorcery to add its ability.)

If you would gain life, you gain that much life plus 1 instead.

: Level 2

//Level_2//

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

: Level 3

//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.

Flying

Whenever you gain life, each opponent loses 1 life.

Leading from the Front — Whenever Commissar Severina Raine attacks, each opponent loses X life, where X is the number of other attacking creatures.

Summary Execution — , Sacrifice another creature: You gain 2 life and draw a card.

Whenever you cast a spell, you gain 1 life.

Whenever you gain life, you may pay . If you do, put a +1/+1 counter on target creature for each 1 life you gained.

Attacking Vampires you control have deathtouch and lifelink. (Any amount of damage they deal to a creature is enough to destroy it. Damage dealt by those creatures also causes their controller to gain that much life.)

Whenever a Vampire you control dies, you may pay 2 life. If you do, draw a card.

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Whenever you tap a Swamp for mana, add an additional .

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, Cult Healer gains lifelink until end of turn.