Team Spirit

Creatures target player's team controls get +1/+1 until end of turn.

Deadhead

{0}: Return Deadhead from your graveyard to the battlefield. Activate only if an opponent isn't touching their hand (of cards).

Denied!

Choose a card name, then target spell's controller reveals their hand. If a card with the chosen name is revealed this way, counter that spell.

Swamp

Chicken Egg

At the beginning of your upkeep, roll a six-sided die. If you roll a 6, sacrifice Chicken Egg and create a 4/4 red Giant Bird creature token.

Free-Range Chicken

{1}{G}: Roll two six-sided dice. If both results are the same, Free-Range Chicken gets +X/+X until end of turn, where X is that result. If the total of those results is equal to any other total you have rolled this turn for this ability, sacrifice it. (For example, if you roll two 3s, it gets +3/+3. If you roll a 4 and a 2 for this ability later that turn, sacrifice it.)

Goblin Bookie

{R}, {T}: Reflip any coin or reroll any die. (Activate only any time it makes sense.)

Elvish Impersonators

As Elvish Impersonators enters, roll a six-sided die twice. Its base power becomes the first result and its base toughness becomes the second result.

Poultrygeist

Flying
Whenever a creature dies, you may roll a six-sided die. If you roll a 1, sacrifice Poultrygeist. Otherwise, put a +1/+1 counter on Poultrygeist.

Mesa Chicken

Stand up, Flap your arms, Cluck like a chicken: Mesa Chicken gains flying until end of turn.

Knight of the Hokey Pokey

First strike
{1}{W}, Do the Hokey Pokey: Prevent all damage a source of your choice would deal to Knight of the Hokey Pokey this turn. (To do the Hokey Pokey, choose an arm, a leg, or your whole self and put it in. Put it out. Put it in. Shake it all about. You do the Hokey Pokey! Turn yourself around.)

Seat of the Synod

Lexivore

Whenever Lexivore deals damage to a player, destroy target permanent other than Lexivore with the most lines of text in its text box. (If two or more cards are tied, target any one of them.)

Thieves' Auction

Exile all nontoken permanents. Starting with you, each player chooses one of the exiled cards and puts it onto the battlefield tapped under their control. Repeat this process until all cards exiled this way have been chosen.

Handcuffs

As Handcuffs enters, choose a player.
When the chosen player's hands aren't touching each other, sacrifice Handcuffs and that player sacrifices three permanents.

Ghazbán Ogress

When Ghazbán Ogress enters, if one player has won more Magic games that day than any other player, that player gains control of Ghazbán Ogress.

Clam Session

As Clam Session enters, choose a word.
At the beginning of your upkeep, you may sing at least six words of a song, at least one of which is the chosen word. If you don't, sacrifice Clam Session. You can't repeat a song.

Plains

Double Deal

Choose another player. Double Deal deals 3 damage to that player. At the beginning of the first upkeep in your next game with that player, Double Deal deals 3 damage to the player.

Mountain

Clam-I-Am

If you roll a 3 on a six-sided die, you may reroll that die.

Spark Fiend

When Spark Fiend enters, roll two six-sided dice. If you rolled 2, 3, or 12, sacrifice Spark Fiend. If you rolled 7 or 11, don't roll dice for Spark Fiend during any of your following upkeeps. If you rolled any other total, note that total.
At the beginning of your upkeep, roll two six-sided dice. If you rolled 7, sacrifice Spark Fiend. If you roll the noted total, don't roll dice for Spark Fiend during any of your following upkeeps. Otherwise, do nothing.

Goblin Tutor

Roll a six-sided die. If you roll a 1, Goblin Tutor has no effect. Otherwise, search your library for the indicated card, reveal it, put it into your hand, then shuffle.
2 — A card named Goblin Tutor
3 — An enchantment
4 — An artifact
5 — A creature
6 — An instant or sorcery

Fowl Play

Enchant creature
Enchanted creature loses all abilities and is a Bird creature with base power and toughness 1/1.

Island

Double Play

Choose another player. Search your library for a basic land card, put it onto the battlefield, then shuffle. At the beginning of the first upkeep in your next game with that player, search your library for a basic land card, put it onto the battlefield, then shuffle.

Timmy, Power Gamer

{4}: You may put a creature card from your hand onto the battlefield.

Jalum Grifter

{1}{R}, {T}: Shuffle Jalum Grifter and two lands you control face down. Target opponent chooses one of those cards. Turn the cards face up. If they chose Jalum Grifter, sacrifice it. Otherwise, destroy target permanent.

Sex Appeal

Prevent the next 3 damage that would be dealt this turn to any number of targets, divided as you choose. If there are more people in the room of a different gender than you are as you cast this spell, prevent the next 6 damage this way instead.

Hurloon Wrangler

Denimwalk (This creature can't be blocked as long as defending player is wearing denim.)

Krazy Kow

At the beginning of your upkeep, roll a six-sided die. If you a roll a 1, sacrifice Krazy Kow and it deals 3 damage to each creature and each player.

Clambassadors

Whenever Clambassadors deals damage to a player, choose an artifact, creature, or land you control. That player gains control of that permanent.

Chaos Confetti

{4}, {T}: Tear Chaos Confetti into pieces. Throw the pieces onto the battlefield from a distance of at least five feet. Destroy each permanent that a piece touches. Remove the pieces from the game.

Censorship

As Censorship enters, choose a word.
Whenever a player says the chosen word, Censorship deals 2 damage to that player.

Forest

Infernal Spawn of Evil

Flying, first strike
{1}{B}, Reveal Infernal Spawn of Evil from your hand, Say "It's coming!": Infernal Spawn of Evil deals 1 damage to target opponent or planeswalker. Activate only during your upkeep and only once each turn.

Gus enters with a +1/+1 counter on it for each Magic game you have lost to one of your opponents since you last won a game against them.

Double Dip

Choose another player. You gain 5 life. At the beginning of the first upkeep in your next game with that player, you gain 5 life.