At the beginning of your upkeep, choose target nonland permanent you control and up to two target nonland permanents you don't control. Destroy one of them at random.

Sliver creatures you control have "Whenever this creature deals combat damage to a player, exile the top card of your library. You may play that card this turn."

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

Return target permanent to its owner's hand.

Haste

Whenever Captain Lannery Storm attacks, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you sacrifice a Treasure, Captain Lannery Storm gets +1/+0 until end of turn.

: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Whenever Captain Vargus Wrath attacks, Pirates you control get +1/+1 until end of turn for each time you've cast a commander from the command zone this game.

Equipped creature gets +1/+0.

Whenever equipped creature attacks, create a 1/1 white Kor Ally creature token that's tapped and attacking.

Equip

The next X damage that would be dealt to target creature, planeswalker, or player this turn is dealt to another target creature, planeswalker, or player instead.

Enchant creature

Enchanted creature can't attack or block.

When Captured by Lagacs enters, support 2. (Put a +1/+1 counter on each of up to two target creatures.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

You gain 4 life.

Whenever Carefree Swinemaster attacks, you may pay . If you do, create a 2/2 green Boar creature token that's tapped and attacking.

Draw two cards, then discard two cards.

Target player draws three cards, loses 3 life, and gets three poison counters.

Flying

Whenever a player sacrifices a permanent, put a +1/+1 counter on Carmen, Cruel Skymarcher and you gain 1 life.

Whenever Carmen attacks, return up to one target permanent card with mana value less than or equal to Carmen's power from your graveyard to the battlefield.

First strike, haste

Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Destroy target artifact, enchantment, or creature with flying. If that permanent'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.)

: Put a +1/+1 counter on Carnivorous Moss-Beast.

At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.

: Carrion Ants gets +1/+1 until end of turn.

Flying

When Carrion Locust enters, exile target card from an opponent's graveyard. If it was a creature card, that player loses 1 life.

Flying

Sacrifice another creature: Cartel Aristocrat gains protection from the color of your choice until end of turn.

Flying

When Cartographer's Hawk deals combat damage to a player who controls more lands than you, return it to its owner's hand. If you do, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

Enchant creature you control

When Cartouche of Solidarity enters, create a 1/1 white Warrior creature token with vigilance.

Enchanted creature gets +1/+1 and has first strike. (It deals combat damage before creatures without first strike.)

: Add .

, : Add , , or .

Indestructible

: Add .

, : Add five mana in any combination of colors.

When this Case enters, it deals 3 damage to target creature an opponent controls.

To solve — Three or more sources you controlled dealt damage this turn. (If unsolved, solve at the beginning of your end step.)

Solved — Sacrifice this Case: Exile the top three cards of your library. Choose one of them. You may play that card this turn.

When this Case enters, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

To solve — You control three or more artifacts. (If unsolved, solve at the beginning of your end step.)

Solved — , Sacrifice this Case: Put four +1/+1 counters on target noncreature artifact. It becomes a 0/0 Bird creature with flying in addition to its other types.

When this Case enters, destroy up to one target creature that was dealt damage this turn.

To solve — Three or more creature cards were put into graveyards from anywhere this turn. (If unsolved, solve at the beginning of your end step.)

Solved — This Case is a 4/4 Gorgon creature with deathtouch and lifelink in addition to its other types.

Whenever a Detective you control enters or is turned face up, put a +1/+1 counter on it.

To solve — You control three or more Detectives. (If unsolved, solve at the beginning of your end step.)

Solved — If one or more tokens would be created under your control, those tokens plus a Clue token are created instead. (It's an artifact with ", Sacrifice this artifact: Draw a card.")

When this Case enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.

To solve — There are five colors among permanents you control. (If unsolved, solve at the beginning of your end step.)

Solved — At the beginning of combat on your turn, target creature you control gains flying, double strike, and vigilance until end of turn.

When this Case enters, create a 2/1 black Skeleton creature token and suspect it. (It has menace and can't block.)

To solve — You control no suspected Skeletons. (If unsolved, solve at the beginning of your end step.)

Solved — , Sacrifice this Case: Search your library for a card, put it into your hand, then shuffle. Activate only as a sorcery.

Whenever a creature you control enters, you gain 1 life.

To solve — You've gained 5 or more life this turn. (If unsolved, solve at the beginning of your end step.)

Solved — Sacrifice this Case: Creature cards in your graveyard gain "You may cast this card from your graveyard" until end of turn.

Vigilance

Whenever Cass or another creature you control dies, if it was enchanted or equipped, return any number of Aura cards that were attached to it from your graveyard to the battlefield attached to target creature, then attach any number of Equipment that were attached to it to that creature.

Enchant creature

Enchanted creature gets -2/-0 and can't block.

Destroy all non-Giant creatures. (Then exile this card. You may cast the creature later from exile.)

Instant and sorcery spells you control have rebound. (Exile the spell as it resolves if you cast it from your hand. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.)

Target opponent reveals their hand. You choose a nonland card from it and exile that card.

Untapped creatures you control get +0/+2.

Castle Embereth enters tapped unless you control a Mountain.

: Add .

, : Creatures you control get +1/+0 until end of turn.

Castle Locthwain enters tapped unless you control a Swamp.

: Add .

, : Draw a card, then you lose life equal to the number of cards in your hand.

: Add .

, : Add .

, : Add or .

Choose one or more —

• Destroy target artifact.

• Destroy target creature.

• Destroy target enchantment.

• Destroy target land.

• Destroy target planeswalker.

Each player chooses from among the permanents they control an artifact, a creature, an enchantment, and a land, then sacrifices the rest.

Cataclysmic Prospecting deals X damage to each creature. For each mana from a Desert spent to cast this spell, create a tapped Treasure token.

Flashback costs you pay cost less.

Flashback costs your opponents pay cost more.

Tap two untapped Soldiers you control: Catapult Squad deals 2 damage to target attacking or blocking creature.

Gain control of target permanent until end of turn. Untap it. It gains haste until end of turn.

Fuse (You may cast one or both halves of this card from your hand.)

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.