Astral Cornucopia enters the battlefield with X charge counters on it. {T}: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia.

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

{2}, {T}: This turn, when target creature you control attacks and isn't blocked, it assigns no combat damage this turn and you put a cube counter on Delif's Cube. {2}, Remove a cube counter from Delif's Cube: Regenerate target creature.

At the beginning of your upkeep, choose one — • Put a +1/+1 counter on target artifact creature. • Put a charge counter on target noncreature artifact.

{3}, {T}: Put an elixir counter on Essence Bottle. {T}, Remove all elixir counters from Essence Bottle: You gain 2 life for each elixir counter removed this way.

Glistening Sphere enters the battlefield tapped. When Glistening Sphere enters the battlefield, proliferate. {T}: Add one mana of any color. Corrupted — {T}: Add three mana of any one color. Activate only if an opponent has three or more poison counters.

At the beginning of your upkeep, you may put a charge counter on Golden Urn. {T}, Sacrifice Golden Urn: You gain life equal to the number of charge counters on Golden Urn.

{X}, {T}: You may exile a nonland card from your hand. You may cast that card for as long as it remains exiled. Put a charge counter on Ice Cauldron and note the type and amount of mana spent to pay this activation cost. Activate only if there are no charge counters on Ice Cauldron. {T}, Remove a charge counter from Ice Cauldron: Add Ice Cauldron's last noted type and amount of mana. Spend this mana only to cast the last card exiled with Ice Cauldron.

At the beginning of your upkeep, put a time counter on Infinite Hourglass. All creatures get +1/+0 for each time counter on Infinite Hourglass. {3}: Remove a time counter from Infinite Hourglass. Any player may activate this ability but only during any upkeep step.

{1}, {T}: Put a charge counter on Jeweled Amulet. Note the type of mana spent to pay this activation cost. Activate only if there are no charge counters on Jeweled Amulet. {T}, Remove a charge counter from Jeweled Amulet: Add one mana of Jeweled Amulet's last noted type.

Whenever you cast an artifact creature spell, it gains sunburst. (It enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) At the beginning of your end step, if there are thirty or more counters among artifacts and creatures you control, Lux Artillery deals 10 damage to each opponent.

{4}: Put a pressure counter on Magma Mine. {T}, Sacrifice Magma Mine: It deals damage equal to the number of pressure counters on it to any target.

Noble's Purse enters the battlefield tapped and with three coin counters on it. {T}, Remove a coin counter from Noble's Purse: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Put a charge counter on Otherworld Atlas. {T}: Each player draws a card for each charge counter on Otherworld Atlas.

{2}, {T}: Shuffle target nontoken permanent you control into its owner's library.

Whenever Serum Tank or another artifact enters the battlefield, put a charge counter on Serum Tank. {3}, {T}, Remove a charge counter from Serum Tank: Draw a card.

Magecraft — Whenever you cast or copy an instant or sorcery spell, put a book counter on Spell Satchel. {T}, Remove a book counter from Spell Satchel: Add {C}. {3}, {T}, Remove three book counters from Spell Satchel: Draw a card.

{T}, Sacrifice an artifact: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{3}, {T}: Put a hatchling counter on Triassic Egg. Sacrifice Triassic Egg: Choose one. Activate only if there are two or more hatchling counters on Triassic Egg. • You may put a creature card from your hand onto the battlefield. • Return target creature card from your graveyard to the battlefield.

Vigilance When Adaptive Sporesinger enters the battlefield, choose one — • Target creature gets +2/+2 and gains vigilance until end of turn. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When Blightbelly Rat dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{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 Whenever Cockatrice blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

When Deepglow Skate enters the battlefield, double the number of each kind of counter on any number of target permanents.

Flying Djinn of Wishes enters the battlefield with three wish counters on it. {2}{U}{U}, Remove a wish counter from Djinn of Wishes: Reveal the top card of your library. You may play that card without paying its mana cost. If you don't, exile it.

{1}{G}, {T}: Target creature doesn't untap during its controller's next untap step.

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.)

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying {G}: Killer Bees gets +1/+1 until end of turn.

If you would put one or more counters on a creature or planeswalker you control or on yourself, put that many plus one of each of those kinds of counters on that permanent or player instead. Choose a Background (You can have a Background as a second commander.)

Defender (This creature can't attack.) Flying Whenever Mindbender Spores blocks a creature, put four fungus counters on that creature. The creature gains "This creature doesn't untap during your untap step if it has a fungus counter on it" and "At the beginning of your upkeep, remove a fungus counter from this creature."

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) {T}: Put a music counter on target creature. If it doesn't have "At the beginning of your upkeep, destroy this creature unless you pay {1} for each music counter on it," it gains that ability.

Flying At the beginning of each end step, if a creature died this turn, put a carrion counter on Osai Vultures. Remove two carrion counters from Osai Vultures: Osai Vultures gets +1/+1 until end of turn.

When Perrie enters the battlefield, put a shield counter on target creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Whenever Perrie attacks, target creature you control gains trample and gets +X/+X until end of turn, where X is the number of different kinds of counters among permanents you control.

{T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. {U}, {T}: Search your library for a card named Heart-Piercer Bow or Vial of Dragonfire, reveal it, put it into your hand, then shuffle.

{1}, {T}: Return Snow Hound and target green or blue creature you control to their owner's hand.

At the beginning of your upkeep, put a spore counter on Spore Flower. Remove three spore counters from Spore Flower: Prevent all combat damage that would be dealt this turn.

Flying Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Whenever another creature enters the battlefield under your control, you may pay {2}. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying If you would proliferate, proliferate twice instead. {1}{U/P}{U/P}, Remove three counters from among other artifacts, creatures, and planeswalkers you control: Put an indestructible counter on Tekuthal, Inquiry Dominus. ({U/P} can be paid with either {U} or 2 life.)

At the beginning of your upkeep, put a spore counter on Thorn Thallid. Remove three spore counters from Thorn Thallid: It deals 1 damage to any target.

Flying Whenever Thrummingbird 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.)

Tormented Soul can't block and can't be blocked.

At the beginning of your upkeep, put a currency counter on Trade Caravan. Remove two currency counters from Trade Caravan: Untap target basic land. Activate only during an opponent's upkeep.

At the beginning of your upkeep, put a spore counter on Utopia Mycon. Remove three spore counters from Utopia Mycon: Create a 1/1 green Saproling creature token. Sacrifice a Saproling: Add one mana of any color.

Enchant creature At the beginning of your upkeep, you may put an arrow counter on Archery Training. Enchanted creature has "{T}: This creature deals X damage to target attacking or blocking creature, where X is the number of arrow counters on Archery Training."

At the beginning of your upkeep, sacrifice Breeding Pit unless you pay {B}{B}. At the beginning of your end step, create a 0/1 black Thrull creature token.

Enchant creature Fylgja enters the battlefield with four healing counters on it. Remove a healing counter from Fylgja: Prevent the next 1 damage that would be dealt to enchanted creature this turn. {2}{W}: Put a healing counter on Fylgja.

Iceberg enters the battlefield with X ice counters on it. {3}: Put an ice counter on Iceberg. Remove an ice counter from Iceberg: Add {C}.

Enchant creature Enchanted creature can attack as though it had haste. {0}: Untap enchanted creature. Activate only during your turn and only once each turn.

Enchant creature Enchanted creature has "Cumulative upkeep {1}." (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)

Whenever you draw a card, put a foreshadow counter on Ominous Seas. Remove eight foreshadow counters from Ominous Seas: Create an 8/8 blue Kraken creature token. Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever a creature an opponent controls becomes tapped, put a palliation counter on Palliation Accord. Remove a palliation counter from Palliation Accord: Prevent the next 1 damage that would be dealt to you this turn.

At the beginning of your upkeep, you may put a verse counter on Serra's Hymn. Sacrifice Serra's Hymn: Prevent the next X damage that would be dealt this turn to any number of targets, divided as you choose, where X is the number of verse counters on Serra's Hymn.

Choose three. You may choose the same mode more than once. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) • Target creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.) • Counter target activated or triggered ability.

Counter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Destroy target nonartifact, nonblack creature. It can't be regenerated.

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

Bottomless Vault enters the battlefield tapped. You may choose not to untap Bottomless Vault during your untap step. At the beginning of your upkeep, if Bottomless Vault is tapped, put a storage counter on it. {T}, Remove any number of storage counters from Bottomless Vault: Add {B} for each storage counter removed this way.

{T}, Exile a creature you control: Put a storage counter on City of Shadows. {T}: Add {C} for each storage counter on City of Shadows.

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

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Glacial Chasm enters the battlefield, sacrifice a land. Creatures you control can't attack. Prevent all damage that would be dealt to you.

Icatian Store enters the battlefield tapped. You may choose not to untap Icatian Store during your untap step. At the beginning of your upkeep, if Icatian Store is tapped, put a storage counter on it. {T}, Remove any number of storage counters from Icatian Store: Add {W} for each storage counter removed this way.

({T}: Add {U}.)

Path of Ancestry enters the battlefield tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

{T}: Add one mana of any type that a land you control could produce.

Sand Silos enters the battlefield tapped. You may choose not to untap Sand Silos during your untap step. At the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it. {T}, Remove any number of storage counters from Sand Silos: Add {U} for each storage counter removed this way.

({T}: Add {B}.)

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Return target creature card from your graveyard to the battlefield. Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature gets -4/-4 until end of turn. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)