Choose one --

• Abrade deals 3 damage to target creature.

• Destroy target artifact.

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

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

Basalt Monolith doesn't untap during your untap step.

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

{3}: Untap Basalt Monolith.

Basalt Monolith doesn't untap during your untap step.

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

{3}: Untap Basalt Monolith.

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

Counter target instant spell if it's blue.

Draw a card at the beginning of the next turn's upkeep.

Sacrifice Children of Korlis: You gain life equal to the life you've lost this turn. (Damage causes loss of life.)

{T}: Target player mills a card. (They put the top card of their library into their graveyard.)

{5}, {T}, Sacrifice Codex Shredder: Return target card from your graveyard to your hand.

{T}: Target player mills a card. (They put the top card of their library into their graveyard.)

{5}, {T}, Sacrifice Codex Shredder: Return target card from your graveyard to your hand.

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.)

At the beginning of your upkeep, put a rust counter on each artifact target opponent controls. Then destroy each artifact with mana value less than or equal to the number of rust counters on it. Artifacts destroyed this way can't be regenerated.

When Corrosion leaves the battlefield, remove all rust counters from all permanents.

Add {R}{R}{R}.

Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

When Dockside Extortionist enters the battlefield, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Double strike

Magecraft -- Whenever you cast or copy an instant or sorcery spell, return target nonlegendary creature card from your graveyard to your hand.

As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way.

Each opponent sacrifices a creature. Create a 3/6 black and red Avatar creature token with haste and "Whenever this creature attacks, it deals 3 damage to each opponent."

Return to the battlefield all permanent cards in your graveyard that were put there from the battlefield this turn.

As an additional cost to cast this spell, pay X life.

Fire Covenant deals X damage divided as you choose among any number of target creatures.

When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies.

Copy target instant or sorcery spell. You may choose new targets for the copy.

When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies.

Copy target instant or sorcery spell. You may choose new targets for the copy.

Exile Ill-Gotten Gains. Each player discards their hand, then returns up to three cards from their graveyard to their hand.

When Impulsive Pilferer dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Encore {3}{R} ({3}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Prevent all combat damage that would be dealt to you this turn. For each 1 damage prevented this way, create a 2/1 white and black Inkling creature token with flying.

When you cast this spell, draw four cards.

Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)

When Kozilek, Butcher of Truth is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.

Counter target spell unless its controller pays {1}.

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

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Whenever an opponent attacks one or more planeswalkers you control, put a loyalty counter on each planeswalker you control.

Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

+1: You may discard a card. If you do, draw a card. If a creature card was discarded this way, draw two cards instead.

-2: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of your next upkeep.

-7: You get an emblem with "Whenever a creature enters the battlefield under your control, it deals damage equal to its power to any target."

Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest. If {B}{R} was spent to cast this spell, you choose the permanents for each player instead.

Add {R}{R}{R}.

Choose one --

• Counter target spell if it's blue.

• Destroy target permanent if it's blue.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)

Create a 1/1 white Soldier creature token.

Choose one --

• Counter target blue spell.

• Destroy target blue permanent.

Copy target instant or sorcery spell. You may choose new targets for the copy.

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

Choose one --

• Rip Apart deals 3 damage to target creature or planeswalker.

• Destroy target artifact or enchantment.

Each player returns to the battlefield all artifact, creature, enchantment, and land cards in their graveyard that were put there from the battlefield this turn.

Menace

Ward--Pay 3 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.)

Magecraft -- Whenever you cast or copy an instant or sorcery spell, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

Add {R}{R}{R}{R}{R}.

{2}, {T}, Sacrifice Shadowblood Egg: Add {B}{R}. Draw a card.

Destroy target artifact.

Dredge 1 (If you would draw a card, you may mill a card instead. If you do, return this card from your graveyard to your hand.)

Your opponents can't cast spells this turn.

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

Enchant creature

Enchanted creature has "{T}: Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

Storm-Kiln Artist gets +1/+0 for each artifact you control.

Magecraft -- Whenever you cast or copy an instant or sorcery spell, create a Treasure token.

When Sunscorched Desert enters the battlefield, it deals 1 damage to target player or planeswalker.

{T}: Add {C}.

As long as equipped creature is tapped, tapped creatures you control get +2/+0.

As long as equipped creature is untapped, untapped creatures you control get +0/+2.

{3}: You may tap or untap equipped creature.

Equip {3}

Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.

When you cast this spell, destroy target permanent.

Indestructible

Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)

When Ulamog, the Infinite Gyre is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

Equipped creature has "{3}, {Q}: This creature gets +2/+2 until end of turn." ({Q} is the untap symbol.)

Equip {0}

Each nonland card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)

At the beginning of the end step, sacrifice Underworld Breach.

Sacrifice a land: You gain 2 life.