Trample, toxic 1

Whenever one or more creatures you control deal combat damage to one or more players, proliferate.

Corrupted — At the beginning of your end step, if an opponent has three or more poison counters, draw a card, then you may put a land card from your hand onto the battlefield.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

Whenever enchanted creature attacks or blocks, its controller loses 3 life.

Enchant land

Enchanted land is a Swamp.

Whenever enchanted land becomes tapped, its controller loses 2 life.

At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature.

If a land is tapped for mana, it produces instead of any other type and amount.

Enchant creature

When enchanted creature attacks, return it and Contempt to their owners' hands at end of combat.

Target creature you control deals damage equal to its power to another target creature. If excess damage was dealt this way, discover X, where X is that excess damage. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Whenever you're dealt combat damage, the attacking player gains control of Contested Game Ball and untaps it.

, : Draw a card and put a point counter on Contested Game Ball. Then if it has five or more point counters on it, sacrifice it and create a Treasure token.

Surveil 5. (Look at the top five cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Contortionist Troupe enters the battlefield with X +1/+1 counters on it.

Coven — At the beginning of your end step, if you control three or more creatures with different powers, put a +1/+1 counter on target creature you control.

Exile target creature, then roll a d20.

1–9 | Its controller creates a 4/4 green Ox creature token.

10–19 | Its controller creates a 2/2 green Boar creature token.

20 | Its controller creates a 0/1 white Goat creature token.

Destroy target creature. Create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

Counter target spell.

Draw a card.

Enchant creature

You control enchanted creature.

This spell can't be countered.

Shroud

CARDNAME's power and toughness are each equal to the number of turns you've taken this game. (If this is in your deck, please keep track of your turns. This means you, Mark.)

Counter target spell.

Recover (When a creature is put into your graveyard from the battlefield, you may pay . If you do, return this card from your graveyard to your hand. Otherwise, exile this card.)

At the beginning of your upkeep, if you have 10 or less life, you gain 1 life.

Enchant creature

When Convenient Target enters the battlefield, suspect enchanted creature. (It has menace and can't block.)

Enchanted creature gets +1/+1.

: Return Convenient Target from your graveyard to your hand.

At the beginning of your upkeep, sacrifice Conversion unless you pay .

All Mountains are Plains.

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

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

At the beginning of each upkeep, if no spells were cast last turn, transform Convicted Killer.

Enchant land

As Convincing Mirage enters the battlefield, choose a basic land type.

Enchanted land is the chosen type.

, : Convulsing Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.

Enchanted creature can't block.

Enchant creature

Enchanted creature can't attack or block.

: Exile enchanted creature.

Enchant creature

Enchanted creature has banding. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Choose a creature type. Coordinated Barrage deals damage to target attacking or blocking creature equal to the number of permanents you control of the chosen type.

Equipped creature gets +2/+2 and can't block.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Trample

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

: Add .

Each other Human you control gets +1/+0 and has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Whenever Copperhorn Scout attacks, untap each other creature you control.

Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands.

: Add or .

Flying

Whenever you surveil, you may pay . If you do, create a token that's a copy of Copy Catchers.

You may have Copy Land enter the battlefield as a copy of any land on the battlefield, except it's an enchantment in addition to its other types.

Coral Atoll enters the battlefield tapped.

When Coral Atoll enters the battlefield, sacrifice it unless you return an untapped Island you control to its owner's hand.

: Add .

Defender

, : Target player mills X cards, where X is the number of creatures you control with defender. (To mill a card, a player puts the top card of their library into their graveyard.)

, Discard a card at random: Target creature gets +2/+2 until end of turn.

Enchant green or white creature

Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you discard a card."

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Coral Trickster is turned face up, you may tap or untap target permanent.

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-3

3/3

Flying

LEVEL 4+

4/4

Flying

Other Merfolk creatures you control get +1/+1.

Coram, the Undertaker gets +X/+0, where X is the greatest power among creature cards in all graveyards.

Whenever Coram attacks, each player mills a card.

During each of your turns, you may play a land and cast a spell from among cards in graveyards that were put there from libraries this turn.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Core Prowler dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Haste

, : Add . Spend this mana only to cast instant and/or sorcery spells.

When Cormela, Glamour Thief dies, return up to one target instant or sorcery card from your graveyard to your hand.

Players can't cast spells with the same name as a nontoken permanent.

Players can't play nonbasic lands with the same name as a nontoken permanent.

Target creature you control gains myriad until end of turn. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

When Corpse Augur dies, you draw X cards and you lose X life, where X is the number of creature cards in target player's graveyard.

Mill three cards, then you may return a creature card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

When Corpse Connoisseur enters the battlefield, you may search your library for a creature card, put that card into your graveyard, then shuffle.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

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

Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

, , Sacrifice a creature: Search your library for a Zombie card and a Swamp card, reveal them, put them into your hand, then shuffle.