Whenever you cast a spell, note the first letter of its artist's name. If that letter wasn't already noted, put a +1/+1 counter on Abstract Iguanart.

When Alpha Guard enters the battlefield, choose a letter.

{T}: Untap another target permanent whose name starts with the chosen letter.

Hexproof

Whenever you roll a die, put a number of luck counters on As Luck Would Have It equal to the result. Then if there are 100 or more luck counters on As Luck Would Have It, you win the game. (Count both rolls if you reroll a die.)

{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Trample

Whenever a player casts a spell, put a chip counter on its mana value.

B-I-N-G-O gets +9/+9 for each set of three numbers in a row with chip counters on them.

Madness {R}, cycling {1}{R}, kicker {2}{R}, flashback {3}{R}, buyback {4}{R}

Blast from the Past deals 2 damage to any target. If this spell was kicked, create a 1/1 red Goblin creature token.

As Boomstacker enters the battlefield and whenever it attacks, stack two dice on top of it. (All dice must be stacked vertically, one on top of another.)

Boomstacker gets +1/+1 for each die in its stack.

Boomstacker attacks each combat if able.

When the stack falls, sacrifice Boomstacker.

Whenever you cast a silver-bordered spell, put a +1/+1 counter on Border Guardian.

Whenever you cast a black-bordered spell, Border Guardian can't be blocked this turn.

Whenever you cast a white-bordered spell, Border Guardian gains double strike until end of turn.

Roll a six-sided die. Create a number of 1/1 red Goblin creature tokens equal to the result.

Whenever any player taps a permanent, that player chooses one of their opponents. The chosen player gains control of that permanent at the beginning of the next end step.

At the beginning of each player's end step, if that player didn't tap any nonland permanents that turn, Burning Cinder Fury of Crimson Chaos Fire deals 3 damage to that player.

{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.

Whenever you roll a 4 or higher on a die, create a 1/1 green Squirrel creature token.

City of Ass enters the battlefield tapped.

{T}: Add one and one-half mana of any one color.

Flying

{1}, Throw Clay Pigeon into the air at least two feet above your head while seated: If you catch Clay Pigeon with one hand, prevent all damage a source of your choice would deal to you this turn and tap Clay Pigeon. Otherwise, sacrifice it.

Join forces -- Starting with you, each player may pay any amount of mana. Each player searches their library for up to X basic land cards, where X is the total amount of mana paid this way, puts them onto the battlefield tapped, then shuffles.

{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.

At the beginning of each opponent's upkeep, that player moves a permanent they control to touch Cramped Bunker and no other permanents. If the player can't, destroy each permanent they control that isn't touching Cramped Bunker, then sacrifice it.

Gotcha -- If an opponent says "creature" or "guy," you may say "Gotcha!" When you do, return Creature Guy from your graveyard to your hand.

Deal Damage deals 4 damage to any target.

Gotcha -- If an opponent says "deal" or "damage," you may say "Gotcha!" When you do, return Deal Damage from your graveyard to your hand.

Haste

When Devil K. Nevil enters the battlefield, jump it over any number of creatures. If it clears those creatures, put that many +1/+1 counters on it. (You can see a jumping demonstration at DevilKNevil.com.)

{T}: Add {G} for each Crossbreed Labs watermark among permanents you control.

At the beginning of your upkeep, flip a coin. If you lose the flip, target opponent chooses whether Dumb Ass attacks this turn.

Elvish House Party's power and toughness are each equal to the current hour, using the twelve-hour system.

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

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

You and target opponent play a best two-out-of-three Rock, Paper, Scissors match. If you win, Face to Face deals 5 damage to that player.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Flip X coins. For each flip you win, create a 2/2 green Sheep creature token named Rabid Sheep.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

When Garbage Elemental enters the battlefield, roll two six-sided dice. Create a number of 1/1 red Goblin creature tokens equal to the difference between those results.

Exile all lands. Give each player a number of those cards chosen at random equal to the number of those cards the player controlled. Each player returns those cards to the battlefield under their control.

As Gluetius Maximus enters the battlefield, an opponent chooses one of your fingers. (Thumbs are fingers, too.)

When the chosen finger isn't touching Gluetius Maximus, sacrifice Gluetius Maximus.

Say "Goblin S.W.A.T. Team": Put a +1/+1 counter on Goblin S.W.A.T. Team unless an opponent swats the table within five seconds. Activate only once each turn.

({T}: Add {R} or {G}.)

Highland Forest enters the battlefield tapped.

Highland Weald enters the battlefield tapped.

{T}: Add {R} or {G}.

As Hydradoodle enters the battlefield, roll X six-sided dice. Hydradoodle enters the battlefield with a number of +1/+1 counters on it equal to the total of those results.

Reach, trample

As Ineffable Blessing enters the battlefield, choose a number.

Whenever a creature with exactly the chosen number of words in its name enters the battlefield under your control, draw a card. (Hyphenated words are one word.)

(This creature has INFINITE POWER.)

{T}: Roll a six-sided die. This ability has the indicated effect.

1 -- Sacrifice Jack-in-the-Mox and you lose 5 life.

2 -- Add {W}.

3 -- Add {U}.

4 -- Add {B}.

5 -- Add {R}.

6 -- Add {G}.

{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.

Just Desserts deals π damage to target creature. (π is the ratio of a circle's circumference to its diameter. (It's a smidgen more than 3.))

As Keeper of the Sacred Word enters the battlefield, choose a word.

Whenever an opponent says the chosen word, Keeper of the Sacred Word gets +3/+3 until end of turn.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. If you sang a song the whole time you were searching and shuffling, you may untap that land.

Gotcha -- If an opponent laughs, you may say "Gotcha!" When you do, return Laughing Hyena from your graveyard to your hand.

{T}: Roll a six-sided die. On a 3 or lower, target player adds {C}. Otherwise, that player adds one mana of any color they choose.

{1}: Flip a coin. If you win the flip, add {C}{C}. Activate only as an instant.

Moss Diamond enters the battlefield tapped.

{T}: Add {G}.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Myriad Landscape enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Gotcha -- If an opponent says a word that's in the name of a card in your graveyard, you may say "Gotcha!" When you do, return that card to your hand.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Rangeling (This card is every land type, including Plains, Island, Swamp, Mountain, Forest, Desert, Gate, Lair, Locus, and all those Urza's ones.)

Nearby Planet enters the battlefield tapped.

When Nearby Planet enters the battlefield, sacrifice it unless you pay {1}.

When Ol' Buzzbark enters the battlefield, roll X six-sided dice onto the battlefield from a height of at least X inches. For each die, put a number of +1/+1 counters equal to the result on each creature you control that die is touching. For each die, Ol' Buzzbark deals damage equal to the result to each creature an opponent controls that die is touching.

When Orcish Paratroopers enters the battlefield, flip it from a height of at least one foot. Sacrifice Orcish Paratroopers unless it turns over completely at least once during the flip and lands face up.

Art rampage 2 (Whenever this creature becomes blocked by a creature, it gets +2/+2 for each creature in the blocker's art beyond the first.)

{3}, {T}: Spin Pointy Finger of Doom in the middle of the table so that it rotates completely at least once, then destroy the closest permanent the finger points to.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Target creature you control gets +2/+2 if it's a host or has augment. Then it fights target creature you don't control.

Whenever Red-Hot Hottie deals damage to a creature, put a third-degree-burn counter on that creature. It gains "At the beginning of each end step, sacrifice this creature unless you scream 'Aaah!' at the top of your lungs."

If you control two or more green permanents that share an artist, you may cast this spell without paying its mana cost.

Exile target artifact.

Whenever a player casts a spell that targets a single player, each player rolls a six-sided die. Change the target of that spell to the player with the lowest result. Reroll to break ties, if necessary.

{T}: Add {C}.

{2}, {T}: Return target commander you own from the battlefield to your hand. Activate only during your turn.

Sauté deals 3½ damage to any target.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base.

Search your library for a basic land card and reveal it. If there's a tree in its art, put it onto the battlefield tapped. Otherwise, put it into your hand. Then shuffle.

{T}: Add {C}.

{1}, {T}, Sacrifice Shire Terrace: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

You and target opponent arm-wrestle. If you win, create a 3/3 green Ape creature token.

As Six-y Beast enters the battlefield, you secretly put six or fewer +1/+1 counters on it, then an opponent guesses the number of counters. If that player guesses right, sacrifice Six-y Beast after it enters the battlefield.

Just a second (As long as this spell is on the stack, players can't move cards on the battlefield.)

Slaying Mantis enters the battlefield by being thrown from a distance of at least three feet.

When Slaying Mantis enters the battlefield, it fights each creature an opponent controls that it touched as it entered.

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

{T}: Add {T}{T}. Activate only once each turn. (While activating an ability, use {T} rather than tapping the permanent to pay for {T}.)

Flying, deathtouch

Whenever Spelling Bee deals combat damage to a player, that player looks at the top card of your library and chooses a word on that card. You spell that word. If you spell it correctly, draw a card. Otherwise, scry 1.

({T}: Add {R} or {G}.)

As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Roll a six-sided die. Strategy, Schmategy has the indicated effect.

1 -- Do nothing.

2 -- Destroy all artifacts.

3 -- Destroy all lands.

4 -- Strategy, Schmategy deals 3 damage to each creature and each player.

5 -- Each player discards their hand and draws seven cards.

6 -- Repeat this process two more times.

Trample (This spell can deal excess damage to its target's controller.)

Super-Duper Death Ray deals 4 damage to target creature.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that appears on your top. (A top is an outerwear garment worn on the upper body.)

The Ultimate Nightmare of Wizards of the Coast® Customer Service deals X damage to each of Y target creatures and Z target players or planeswalkers.

Choose a triggered ability of target permanent. It triggers. You control that ability.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to pay Un-costs.

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

All creatures have haste.

Players play with the top card of their libraries revealed.

Noninstant, nonsorcery cards on top of a library are on the battlefield under their owner's control in addition to being in that library.