At the beginning of your upkeep, you may put a charge counter on Aether Vial.

{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield.

You may spend mana as though it were mana of any color to activate abilities of creatures you control.

Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron.

{T}: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

At the beginning of your precombat main phase, add {B} for each charge counter on Altar of Shadows.

{7}, {T}: Destroy target creature. Then put a charge counter on Altar of Shadows.

{2}, {T}, Sacrifice a land: Draw a card and put a charge counter on Arcane Spyglass.

Remove three charge counters from Arcane Spyglass: Draw a card.

Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager.

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Remove a +1/+1 counter from Arcbound Reclaimer: Put target artifact card from your graveyard on top of your library.

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

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.

Flash

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)

Remove a charge counter from Baton of Courage: Target creature gets +1/+1 until end of turn.

Creatures you control are artifacts in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Whenever you cast an artifact spell, you lose 1 life and create a 2/2 black Necron Warrior artifact creature token.

{2}, {T}: Put a charge counter on Black Mana Battery.

{T}, Remove any number of charge counters from Black Mana Battery: Add {B}, then add an additional {B} for each charge counter removed this way.

{1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost.

{3}, {T}, Remove X charge counters from Brain in a Jar: Scry X.

Tap two untapped artifacts you control: Untap target artifact.

{T}: Add one mana of any color.

{T}: Put a charge counter on Coalition Relic.

At the beginning of your precombat main phase, remove all charge counters from Coalition Relic. Add one mana of any color for each charge counter removed this way.

{2}, {T}: Draw a card, then discard a card. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}, Remove a component counter from Component Pouch: Add two mana of different colors.

{T}: Roll a d20.

1--9 | Put a component counter on Component Pouch.

10--20 | Put two component counters on Component Pouch.

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.)

{2}, {T}: Exile target artifact card from a graveyard. Put a charge counter on Conversion Chamber.

{2}, {T}, Remove a charge counter from Conversion Chamber: Create a 3/3 colorless Phyrexian Golem artifact creature token.

{T}: Put a charge counter on target artifact.

Sacrifice Coretapper: Put two charge counters on target artifact.

{T}: Put a charge counter on target artifact.

Sacrifice Coretapper: Put two charge counters on target artifact.

Converge -- Crystalline Crawler enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.

Remove a +1/+1 counter from Crystalline Crawler: Add one mana of any color.

{T}: Put a +1/+1 counter on Crystalline Crawler.

{T}, Sacrifice a creature: Put a charge counter on Culling Dais.

{1}, Sacrifice Culling Dais: Draw a card for each charge counter on Culling Dais.

Indestructible

{T}: Add {C}.

Whenever Dross Scorpion or another artifact creature dies, you may untap target artifact.

Empowered Autogenerator enters the battlefield tapped.

{T}: Put a charge counter on Empowered Autogenerator. Add X mana of any one color, where X is the number of charge counters on Empowered Autogenerator.

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.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)

{2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)

Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.

{T}: Add {C} for each charge counter on Everflowing Chalice.

Echo {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Sacrifice an artifact: Put a +1/+1 counter on target creature.

{2}: Put a charge counter on Gemstone Array.

Remove a charge counter from Gemstone Array: Add one mana of any color.

Whenever a player casts an instant or sorcery spell, put a number of charge counters on Geometric Nexus equal to that spell's mana value.

{6}, {T}, Remove all charge counters from Geometric Nexus: Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of charge counters removed this way.

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.

Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

{T}: Put a charge counter on Grindclock.

{T}: Target player mills X cards, where X is the number of charge counters on Grindclock.

Flying

Hexavus enters the battlefield with six +1/+1 counters on it.

{1}, Remove a +1/+1 counter from Hexavus: Put a flying counter on another target creature.

{1}, Remove a counter from another creature you control: Put a +1/+1 counter on Hexavus.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)

{T}, Remove X charge counters from Infused Arrows: Target creature gets -X/-X until end of turn.

Sacrifice an artifact: Add {C}{C}.

{T}, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.

{1}, {T}: Put a charge counter on Kyren Toy.

{T}, Remove X charge counters from Kyren Toy: Add an amount of {C} equal to X plus one.

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.

{T}: Put a charge counter on Lux Cannon.

{T}, Remove three charge counters from Lux Cannon: Destroy target permanent.

{4}, {T}: Put a charge counter on Magistrate's Scepter.

{T}, Remove three charge counters from Magistrate's Scepter: Take an extra turn after this one.

{T}, Put a page counter on Mazemind Tome: Scry 1.

{2}, {T}, Put a page counter on Mazemind Tome: Draw a card.

When there are four or more page counters on Mazemind Tome, exile it. If you do, you gain 4 life.

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Mindless Automaton enters the battlefield with two +1/+1 counters on it.

{1}, Discard a card: Put a +1/+1 counter on Mindless Automaton.

Remove two +1/+1 counters from Mindless Automaton: Draw a card.

Monoskelion enters the battlefield with a +1/+1 counter on it.

{1}, Remove a +1/+1 counter from Monoskelion: It deals 1 damage to any target.

{2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault.

{T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.

Orochi Hatchery enters the battlefield with X charge counters on it.

{5}, {T}: Create a 1/1 green Snake creature token for each charge counter on Orochi Hatchery.

{T}: Put a charge counter on Otherworld Atlas.

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

Discard a card: Regenerate Patchwork Gnomes. (The next time this creature would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

{T}: Add one mana of any color.

{1}, {T}: Untap target legendary creature you control.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.)

Remove a charge counter from Pentad Prism: Add one mana of any color.

{T}, Remove a counter from a permanent you control: Choose one --

• Put a charge counter on target artifact.

• Put a +1/+1 counter on target creature.

Reckoner Bankbuster enters the battlefield with three charge counters on it.

{2}, {T}, Remove a charge counter from Reckoner Bankbuster: Draw a card. Then if there are no charge counters on Reckoner Bankbuster, create a Treasure token and a 1/1 colorless Pilot creature token with "This creature crews Vehicles as though its power were 2 greater."

Crew 3

{1}: Look at the top three cards of your library, then put them back in any order.

{T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.

Equipped creature gets +1/+1 and has trample and lifelink.

{1}: Permanents your opponents control lose hexproof and indestructible until end of turn.

Equip {2}

Shriekhorn enters the battlefield with three charge counters on it.

{T}, Remove a charge counter from Shriekhorn: Target player mills two cards.

Sacrifice a creature: Put a charge counter on Spawning Pit.

{1}, Remove two charge counters from Spawning Pit: Create a 2/2 colorless Spawn artifact creature token.

{T}, Pay 1 life: Destroy target permanent you own.

{T}, Pay 2 life: Add one mana of any color.

{T}, Pay 3 life: Proliferate.

{T}, Pay 4 life: Draw a card.

{5}: Untap Staff of Compleation.

{T}: Put an oil counter on Tablet of Compleation.

{T}: Add {C}. Activate only if Tablet of Compleation has two or more oil counters on it.

{1}, {T}: Draw a card. Activate only if Tablet of Compleation has five or more oil counters on it.

{T}: Put an oil counter on The Filigree Sylex.

{T}, Sacrifice The Filigree Sylex: Destroy each nonland permanent with mana value equal to the number of oil counters on The Filigree Sylex.

{T}, Remove ten oil counters from among permanents you control and sacrifice The Filigree Sylex: It deals 10 damage to any target.

Indestructible

When The One Ring enters the battlefield, if you cast it, you gain protection from everything until your next turn.

At the beginning of your upkeep, you lose 1 life for each burden counter on The One Ring.

{T}: Put a burden counter on The One Ring, then draw a card for each burden counter on The One Ring.

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.

Threefold Thunderhulk enters the battlefield with three +1/+1 counters on it.

Whenever Threefold Thunderhulk enters the battlefield or attacks, create a number of 1/1 colorless Gnome artifact creature tokens equal to its power.

{2}, Sacrifice another artifact: Put a +1/+1 counter on Threefold Thunderhulk.

{1}, {T}, Discard a card: You gain 4 life.

{1}, {T}, Pay 1 life: Create a 0/1 white Goat creature token.

{1}, {T}, Sacrifice a creature: Return target artifact card from your graveyard to your hand.

{1}, {T}, Sacrifice an artifact: Draw a card.

Transmogrifying Wand enters the battlefield with three charge counters on it.

{1}, {T}, Remove a charge counter from Transmogrifying Wand: Destroy target creature. Its controller creates a 2/4 white Ox creature token. Activate only as a sorcery.

Deathtouch

Prismatic Gallery -- As long as Trazyn the Infinite is on the battlefield, it has all activated abilities of all artifact cards in your graveyard.

{T}: Add {C}.

{X}{X}, {T}, Sacrifice Treasure Vault: Create X Treasure tokens.

Whenever another artifact or creature you control is put into a graveyard from the battlefield, put an oil counter on Vat of Rebirth.

{2}{B}, {T}, Remove four oil counters from Vat of Rebirth: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

{T}: Add {B}.

Creatures you control have lifelink.

{2}{B}{B}, {T}: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. Activate only as a sorcery.

Workhorse enters the battlefield with four +1/+1 counters on it.

Remove a +1/+1 counter from Workhorse: Add {C}.