{T}: Add one mana of any color in your commander's color identity.

{T}: Add {C}. You gain 1 life.

{T}: Add {C}{C}.

{T}: Add one mana of any color. {T}: Add X mana of any one color, where X is the amount of life you gained this turn.

Flying At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life." Pay 10 life: Untap all lands you control. Activate only once each turn.

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.

Whenever Blossoming Bogbeast attacks, you gain 2 life. Then creatures you control gain trample and get +X/+X until end of turn, where X is the amount of life you gained this turn.

Whenever another creature dies, you may gain 1 life.

Boast — {1}: Target opponent loses 1 life and you gain 1 life. (Activate only if this creature attacked this turn and only once each turn.)

Whenever you gain life, each opponent loses 1 life.

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

Skulk (This creature can't be blocked by creatures with greater power.) Lifelink (Damage dealt by this creature also causes you to gain that much life.)

When Honey Mammoth enters the battlefield, you gain 4 life.

Lifelink When Koma's Faithful dies, each player mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

Deathtouch, lifelink {T}: Add one mana of any color.

Whenever you gain life, each opponent loses 1 life.

Trample, lifelink

Whenever a token you control leaves the battlefield, each opponent loses 1 life and you gain 1 life.

Reach (This creature can block creatures with flying.) Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Whenever another creature dies, each opponent loses 1 life.

When Professor of Zoomancy enters the battlefield, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.

Flying Whenever a creature an opponent controls dies, you may gain 3 life. Whenever an opponent discards a card, you may gain 3 life.

{G}: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on Scavenging Ooze and you gain 1 life.

When Serrated Scorpion dies, it deals 2 damage to each opponent and you gain 2 life.

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

When Springmane Cervin enters the battlefield, you gain 2 life.

Vigilance Whenever Sylvan Shepherd attacks, roll a d20. 1—9 | You gain 1 life. 10—19 | You gain 2 life. 20 | You gain 5 life.

Skulk (This creature can't be blocked by creatures with greater power.) Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Flying Whenever Vampire Envoy becomes tapped, you gain 1 life.

Flying, deathtouch, lifelink

When Vampire Spawn enters the battlefield, each opponent loses 2 life and you gain 2 life.

Menace Whenever you gain life, you may pay {B}. If you do, return target creature card from your graveyard to your hand.

Whenever you gain life, target opponent loses that much life. {3}{B}{B}: Creatures you control gain lifelink until end of turn.

Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 1 life and you gain 1 life.

When Bastion of Remembrance enters the battlefield, create a 1/1 white Human Soldier creature token. Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.

Attacking Pests you control get +1/+0 and have menace. Whenever a nontoken creature you control dies, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

Creatures you control have "{T}: Add one mana of any color."

(Gain the next level as a sorcery to add its ability.) Landfall — Whenever a land enters the battlefield under your control, you gain 1 life. {2}{G}: Level 2 You may play an additional land on each of your turns. {4}{G}: Level 3 When this Class becomes level 3, target land you control becomes a creature with haste and "This creature's power and toughness are each equal to the number of lands you control." It's still a land.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Destroy target creature. Put a menace counter on a creature you control. (It can't be blocked except by two or more creatures.)

Destroy target creature. Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

You gain 2 life. Target creature gets +X/+X until end of turn, where X is the amount of life you gained this turn.

Until end of turn, target creature gains deathtouch and "When this creature dies, return it to the battlefield tapped under its owner's control." You gain 2 life.

This spell costs {2} less to cast if you gained life this turn. Destroy target nonland permanent.

Destroy target creature.

Choose one — • Put a +1/+1 counter on target creature. • Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

As an additional cost to cast this spell, sacrifice a creature. Create X 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life," where X is the sacrificed creature's power.

Prevent all damage that would be dealt this turn by creatures your opponents control.

{T}: Add one mana of any color in your commander's color identity.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {G}.)

Rupture Spire enters the battlefield tapped. When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

({T}: Add {B}.)

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents. {T}: Add {B} or {G}.

Witherbloom Campus enters the battlefield tapped. {T}: Add {B} or {G}. {4}, {T}: Scry 1.

Target opponent reveals their hand. You choose a nonland card from it or a card from their graveyard. Exile that card. You lose 1 life.

Destroy target artifact or enchantment. If its mana value is 2 or less, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Search your library for a card, put that card into your hand, then shuffle. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, add {B}{B}{B}.

Put two +1/+1 counters on target creature. It gains lifelink until end of turn.

Destroy target creature or planeswalker. Whenever a creature blocks this turn, its controller loses 1 life.

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. Cycling {1} ({1}, Discard this card: Draw a card.)

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. Cycling {2} ({2}, Discard this card: Draw a card.)

As an additional cost to cast this spell, exile a creature you control. Exile target creature or planeswalker.

Create two 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life."

Return target creature card from your graveyard to your hand. Draw a card.

Return target creature card from your graveyard to the battlefield with a lifelink counter on it.