Paradox — Whenever you cast a spell from anywhere other than your hand, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Doctor's companion (You can have two commanders if the other is the Doctor.)

Whenever a creature you control attacks alone, it gains deathtouch and lifelink until end of turn. Put a dread counter on Grasping Shadows. Then if there are three or more dread counters on it, transform it.

Ward—Discard a card.

Whenever Graveyard Trespasser enters or attacks, exile up to one target card from a graveyard. If a creature card was exiled this way, each opponent loses 1 life and you gain 1 life.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

At the beginning of your upkeep, Grim Feast deals 1 damage to you.

Whenever a creature is put into an opponent's graveyard from the battlefield, you gain life equal to its toughness.

Flying

Whenever Gwaihir attacks, target attacking creature gains flying until end of turn.

At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this creature attacks, target attacking creature gains flying until end of turn."

Whenever another creature you control enters, you gain 2 life.

Indestructible

As long as your devotion to white is less than five, Heliod isn't a creature.

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

: Another target creature gains lifelink until end of turn.

Enchantment spells you cast cost less to cast.

Whenever you cast an enchantment spell, you gain 1 life.

Deathtouch

Whenever a creature you control with deathtouch attacks, each opponent loses 1 life and you gain 1 life.

Whenever a creature you control with deathtouch deals damage to a planeswalker, destroy that planeswalker.

Whenever Horned Cheetah deals damage, you gain that much life.

Menace

Whenever a creature you control deals combat damage to a player, you gain life equal to that creature's toughness.

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

Enrage — Whenever Imperial Ceratops is dealt damage, you gain 2 life.

Mutate (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.)

Deathtouch

Whenever this creature mutates, each opponent loses X life and you gain X life, where X is the number of times this creature has mutated.

Whenever you cast a planeswalker spell, you gain 1 life.

: Add .

, : Add two mana of different colors. Spend this mana only to cast planeswalker spells.

Whenever Intrepid Trufflesnout attacks alone, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever a player casts a white spell, you may pay . If you do, you gain 1 life.

Whenever another artifact you control enters, put a +1/+1 counter on Jackknight. If that artifact is a Contraption, Jackknight gains lifelink until end of turn.

Whenever Jerren, Corrupted Bishop enters or another nontoken Human you control dies, you lose 1 life and create a 1/1 white Human creature token.

: Target Human you control gains lifelink until end of turn.

At the beginning of your end step, if you have exactly 13 life, you may pay . If you do, transform Jerren.

Whenever a Merfolk you control becomes tapped, you may gain 1 life.

Whenever one or more creatures you control deal combat damage to a player, you may return one of them to its owner's hand. If you do, you may activate loyalty abilities of Kaito twice this turn rather than only once.

+1: Up to one target creature can't attack or block until your next turn.

0: Draw a card.

−2: Create a 2/2 colorless Drone artifact creature token with deathtouch and "When this creature leaves the battlefield, each opponent loses 2 life and you gain 2 life."

Whenever this creature or another Vampire you control dies, you may pay . If you do, target player loses 2 life and you gain 2 life.

Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

Partner with Laurine, the Diversion (When this creature enters, target player may put Laurine into their hand from their library, then shuffle.)

Lifelink

Whenever a creature an opponent controls dies, you gain 1 life and create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

When Kardur, Doomscourge enters, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able.

Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

Landfall — Whenever a land you control enters, you gain 1 life.

: Each player creates a colorless artifact token named Banana with ", Sacrifice this artifact: Add or . You gain 2 life."

Whenever an artifact an opponent controls is put into a graveyard from the battlefield, put a +1/+1 counter on each creature you control that's an Ape or a Monkey.

Whenever Kibo attacks, defending player sacrifices an artifact of their choice.

Kiyomaro, First to Stand's power and toughness are each equal to the number of cards in your hand.

As long as you have four or more cards in hand, Kiyomaro has vigilance.

Whenever Kiyomaro deals damage, if you have seven or more cards in hand, you gain 7 life.

Vigilance

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

When Knights of the Black Rose enters, you become the monarch.

Whenever an opponent becomes the monarch, if you were the monarch as the turn began, that player loses 2 life and you gain 2 life.

Protection from red

Whenever a player casts a red spell, you may gain 1 life.

Whenever Krydle of Baldur's Gate deals combat damage to a player, that player loses 1 life and mills a card, then you gain 1 life and scry 1.

Whenever you attack, you may pay . If you do, target creature can't be blocked this turn.

Rally — Whenever Lantern Scout or another Ally you control enters, creatures you control gain lifelink until end of turn.

Whenever an artifact enters, you may gain 1 life.

As Lich enters, you lose life equal to your life total.

You don't lose the game for having 0 or less life.

If you would gain life, draw that many cards instead.

Whenever you're dealt damage, sacrifice that many nontoken permanents. If you can't, you lose the game.

When Lich is put into a graveyard from the battlefield, you lose the game.

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

Whenever a nontoken creature dies, you lose 1 life and create a Treasure token.

Flying

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

Whenever you cast an artifact spell, you may pay . If you do, you gain 3 life.

Enchant creature

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

Whenever you gain life, you may pay . If you do, put a +1/+1 counter on each creature you control and those creatures gain trample until end of turn.

: Add or .

Whenever you cast a kicked spell, you gain 2 life.

Enchant creature

Whenever enchanted creature attacks or blocks, you gain 4 life.

Lurking Roper doesn't untap during your untap step.

Whenever you gain life, untap Lurking Roper.

Mutate (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.)

Vigilance

Whenever this creature mutates, you gain 4 life.

Whenever you gain life, each opponent loses 1 life.

Whenever Mardu Shadowspear attacks, each opponent loses 1 life.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

When Marina Vendrell's Grimoire enters, if you cast it, draw five cards.

You have no maximum hand size and don't lose the game for having 0 or less life.

Whenever you gain life, draw that many cards.

Whenever you lose life, discard that many cards. Then if you have no cards in hand, you lose the game.

At the beginning of your end step, sacrifice Measure of Wickedness and you lose 8 life.

Whenever another card is put into your graveyard from anywhere, target opponent gains control of Measure of Wickedness.

Whenever one or more Halflings you control attack a player, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Trample

Whenever Mirkwood Elk enters or attacks, return target Elf card from your graveyard to your hand. You gain life equal to that card's power.

Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters tapped and attacking.