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

When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls. {4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice Eldrazi Monument.

{1}, {T}: Add {B}{G}.

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}

At the beginning of your end step, each opponent loses life equal to the number of tapped creatures you control.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) When Acidic Slime enters the battlefield, destroy target artifact, enchantment, or land.

Trample Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Whenever Bloated Contaminator deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

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

{1}, Sacrifice Cankerbloom: Choose one — • Destroy target artifact. • Destroy target enchantment. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying Carnifex Demon enters the battlefield with two -1/-1 counters on it. {B}, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) If one or more tokens would be created under your control, those tokens plus that many 1/1 green Squirrel creature tokens are created instead. {B}, Sacrifice X Squirrels: Target creature gets +X/-X until end of turn.

Haste When Craterhoof Behemoth enters the battlefield, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.

Trample As an additional cost to cast green permanent spells, you may pay 2 life. Those spells cost {G} less to cast if you paid life this way. This effect reduces only the amount of green mana you pay. Whenever you cast a green permanent spell, put a +1/+1 counter on each creature you control.

{T}: Add {G}. Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

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

Landfall — Whenever a land enters the battlefield under your control, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Commanders you control have menace and deathtouch. Partner (You can have two commanders if both have partner.)

Deathtouch Whenever a creature you control with deathtouch deals combat damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

When Generous Patron enters the battlefield, support 2. (Put a +1/+1 counter on each of up to two other target creatures.) Whenever you put one or more counters on a creature you don't control, draw a card.

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 another green creature enters the battlefield under your control, put a +1/+1 counter on target creature.

Tokens you control have "{T}: Add {G}." Choose a Background (You can have a Background as a second commander.)

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.

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.

Other tapped creatures you control have deathtouch. Other untapped creatures you control have hexproof. {1}, {T}: Untap another target creature or land you control.

Other Snake creatures you control get +2/+2. Whenever a Snake you control deals combat damage to a player, you may draw a card.

When Soul Snuffers enters the battlefield, put a -1/-1 counter on each creature.

This spell can't be countered. Indestructible Toski, Bearer of Secrets attacks each combat if able. Whenever a creature you control deals combat damage to a player, draw a card.

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.)

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.

Whenever a creature you control attacks, you may put a quest counter on Beastmaster Ascension. As long as Beastmaster Ascension has seven or more quest counters on it, creatures you control get +5/+5.

Whenever a creature dies, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.

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

Whenever a -1/-1 counter is put on a creature, you may create a 1/1 green Elf Warrior creature token.

Whenever you put one or more -1/-1 counters on a creature, create that many 1/1 black Insect creature tokens.

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

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

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

Target creature you control deals damage equal to its power to target creature you don't control. Each opponent gets a poison counter.

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.

As an additional cost to cast this spell, sacrifice an artifact or creature. You gain life equal to the sacrificed permanent's mana value. Draw two cards.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

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

({T}: Add {G}.)

Golgari Rot Farm enters the battlefield tapped. When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand. {T}: Add {B}{G}.

Jungle Hollow enters the battlefield tapped. When Jungle Hollow enters the battlefield, you gain 1 life. {T}: Add {B} or {G}.

{T}: Add {C}. {T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

Oran-Rief, the Vastwood enters the battlefield tapped. {T}: Add {G}. {T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

({T}: Add {B}.)

Temple of Malady enters the battlefield tapped. When Temple of Malady enters the battlefield, scry 1. {T}: Add {B} or {G}.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

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

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

You draw two cards and you lose 2 life. Each opponent gets a poison counter.

You draw X cards and you lose X life, where X is the number of creatures you control.

Creatures you control get +2/+2 until end of turn. Whenever a creature blocks this turn, its controller gets a poison counter.

Return target nonlegendary creature card from your graveyard to the battlefield with a -1/-1 counter on it.

Until end of turn, creatures you control gain menace and "Whenever this creature deals combat damage to a player, exile the top card of that player's library face down. You may look at and play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell."

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) Target creature you control fights up to one target creature you don't control.

Choose one — • Search your library for a basic land card, reveal it, put it into your hand, then shuffle. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Destroy all creatures. They can't be regenerated.

Choose one — • All creatures get -1/-1 until end of turn. • Destroy target enchantment. • Regenerate each creature you control.

Search your library for up to X basic land cards, where X is the number of tapped creatures you control, put those cards onto the battlefield tapped, then shuffle.

Permanents you control gain hexproof and indestructible until end of turn.

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

Attacking creatures you control have deathtouch. Whenever a creature you control deals combat damage to a player, draw a card.

Choose a creature type. Target player draws X cards and loses X life, where X is the number of creatures they control of the chosen type.

Choose four. You may choose the same mode more than once. • Create a 2/2 Citizen creature token that's all colors. • Return target permanent card from your graveyard to your hand. • Proliferate. • You gain 4 life.

Enchant creature Enchanted creature has "{B}, {T}: Put a -1/-1 counter on target creature."

As Species Specialist enters the battlefield, choose a creature type. Whenever a creature of the chosen type dies, you may draw a card.

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on your turn, if The Ozolith has counters on it, you may move all counters from The Ozolith onto target creature.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Compleated ({B/P} can be paid with {B} or 2 life. If life was paid, this planeswalker enters with two fewer loyalty counters.) 0: You draw a card and you lose 1 life. Proliferate. −2: Target creature becomes a Treasure artifact with "{T}, Sacrifice this artifact: Add one mana of any color" and loses all other card types and abilities. −9: If target player has fewer than nine poison counters, they get a number of poison counters equal to the difference.