Sacrifice a creature: Add {C}{C}.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

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

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.) Equip {1}

{T}: Untap target Forest.

Flying {T}: Add one mana of any color.

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.) Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.

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.) Whenever you tap a Swamp for mana, add an additional {B}.

{T}: Exile target land card from a graveyard. Add one mana of any color. {B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life. {G}, {T}: Exile target creature card from a graveyard. You gain 2 life.

Creature and enchantment spells you control can't be countered. {3}{G}: Target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is the number of enchantments you control. It's still a land.

Whenever you gain life, each opponent loses 1 life. {1}, Sacrifice another creature: Dina, Soul Steeper gets +X/+0 until end of turn, where X is the sacrificed creature's power.

You may play an additional land on each of your turns. Lands you control are every basic land type in addition to their other types.

{T}: Add {B}. Elves of Deep Shadow deals 1 damage to you.

{T}: Add {G}.

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

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Flying Whenever a player sacrifices another permanent, put a +1/+1 counter on each creature you control.

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.) At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.

Trample If you tap a permanent for mana, it produces three times as much of that mana instead.

Whenever you sacrifice a black creature, you may pay 2 life. If you do, each other player sacrifices a creature. Whenever you sacrifice a green creature, you may gain 2 life.

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

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.

Protection from Humans Pay 1 life, Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card. {B}{B}, Discard a card: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

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

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

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

If you tap a permanent for mana, it produces twice as much of that mana instead.

Whenever a creature you control dies, you gain 1 life and draw a card.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

{X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.

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

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Enchant Forest As Utopia Sprawl enters the battlefield, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

This spell can't be countered. Destroy target nonland permanent with mana value 3 or less.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

As an additional cost to cast this spell, discard a card or pay 3 life. Destroy target creature or planeswalker.

As an additional cost to cast this spell, sacrifice a land. Search your library for a land card, put that card onto the battlefield, then shuffle.

Add {B}{B}{B}.

Destroy target creature. You lose 2 life.

As an additional cost to cast this spell, you may sacrifice one or more creatures. When you do, copy this spell for each creature sacrificed this way. You draw a card and you lose 1 life.

Destroy target artifact or creature. It can't be regenerated.

Kicker {1}{B} (You may pay an additional {1}{B} as you cast this spell.) Exile target artifact or enchantment. If this spell was kicked, exile target nonland permanent instead.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

({T}: Add {B} or {G}.)

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}: Add {G}. Channel — {1}{G}, Discard Boseiju, Who Endures: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.

{2}, {T}: Add {B} for each Swamp you control.

Castle Garenbrig enters the battlefield tapped unless you control a Forest. {T}: Add {G}. {2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures.

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

({T}: Add {G}.)

{T}: Add {G} for each creature you control.

{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

({T}: Add {B} or {G}.) As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {T}, Sacrifice Strip Mine: Destroy target land.

({T}: Add {B}.)

({T}: Add {B} or {G}.) Underground Mortuary enters the battlefield tapped. When Underground Mortuary enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Each land is a Swamp in addition to its other land types.

{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {T}, Sacrifice Wasteland: Destroy target nonbasic land.

{T}, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

Target player discards two cards. That player may copy this spell and may choose a new target for that copy.

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.

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way. Cycling {3}{B}{B} ({3}{B}{B}, Discard this card: Draw a card.) When you cycle Decree of Pain, all creatures get -2/-2 until end of turn.

Search your library for a card, put that card into your hand, then shuffle.

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

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.

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.

Destroy target nonland permanent and all other permanents with the same name as that permanent.

Each player sacrifices a creature. If you sacrificed a creature this way, you may return another permanent card from your graveyard to the battlefield.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

Counter target instant or Aura spell that targets a permanent you control.

Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

Exile a creature you control: Add X mana of any one color, where X is 1 plus the exiled creature's mana value. Spend this mana only to cast creature spells.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Untap target creature. Until end of turn, it gains hexproof, reach, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target creature."

Flying, trample Pay 2 life, Sacrifice another creature: Search your library for a card, put that card into your hand, then shuffle.

When The Meathook Massacre enters the battlefield, each creature gets -X/-X until end of turn. Whenever a creature you control dies, each opponent loses 1 life. Whenever a creature an opponent controls dies, you gain 1 life.