Carnivorous Death-Parrot

Flying
At the beginning of your upkeep, sacrifice Carnivorous Death-Parrot unless you say its flavor text.

Clocknapper

When Clocknapper enters, choose beginning phase, first main phase, combat phase, postcombat main phase, or ending phase. Steal that phase from target player during their next turn. (That phase occurs as though it's your turn instead.)

Yet Another Aether Vortex

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.

Entirely Normal Armchair

During your turn, if Entirely Normal Armchair is in your hand, you may hide it on the battlefield.
{0}: Return Entirely Normal Armchair to its owner's hand. Only your opponents may activate this ability and only if they see Entirely Normal Armchair.
{2}, Sacrifice Entirely Normal Armchair: Destroy target attacking creature.

Cogmentor

Flying
{4}: Reassemble target Contraption you control. (Move it onto another one of your sprockets.)

Watermarket

{T}: Add {C}{C}. Spend this mana only to cast spells with watermarks.

Paper Tiger

Creatures named Rock Lobster can't attack or block.

Spell Suck

Counter target spell, then assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Cheatyface

If Cheatyface is in your hand, you may sneak Cheatyface onto the battlefield. If an opponent catches you right away, that player may exile Cheatyface.
Flying

Quick-Stick Lick Trick

Whenever you crank Quick-Stick Lick Trick, target creature gets +1/+1 and gains lifelink until end of turn.

Clam-I-Am

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

Desert

{T}: Add {C}.
{T}: Desert deals 1 damage to target attacking creature. Activate only during the end of combat step.

Gift Horse

Whenever you crank Gift Horse, roll two six-sided dice. Create a number of 1/1 red Goblin creature tokens equal to the difference between those results.

Thud-for-Duds

Whenever you crank Thud-for-Duds, roll two six-sided dice. Thud-for-Duds deals damage to target creature equal to the difference between those results.

Water Gun Balloon Game

As Water Gun Balloon Game enters, each player puts a pop! counter on "0."
Whenever a player casts a spell, move that player's pop! counter up one.
Whenever a player's pop! counter hits "5," that player creates a 5/5 pink Giant Teddy Bear creature token and resets all pop! counters to "0."

Border Guardian

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.

Defective Detective

Defective Detective can't be blocked.
When Defective Detective enters, a person outside the game looks at target opponent's hand and chooses a card from it. That player reveals that card.

Lackey Recycler

Whenever you crank Lackey Recycler, put target creature card from your graveyard on top of your library.

Steamflogger of the Month

When Steamflogger of the Month enters, it assembles a Contraption for each Contraption you control. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Refibrillator

Whenever you crank Refibrillator, return target creature card from your graveyard to your hand.

Steel Squirrel

Whenever you roll a 5 or higher on a die, Steel Squirrel gets +X/+X until end of turn, where X is the result.
{6}: Roll a six-sided die.

Animate Library

Enchant your library
Enchanted library is an artifact creature on the battlefield with power and toughness each equal to the number of cards in it. It's still a library.
If enchanted library would leave the battlefield, exile Animate Library instead.

Command Tower

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

Feisty Stegosaurus

When this creature enters, roll a six-sided die. This creature deals damage equal to the result to target creature an opponent controls.

Bronze Calendar

Spells you cast cost {1} less to cast.
You must speak in a voice other than your normal voice.
When you speak in your normal voice, sacrifice Bronze Calendar.

Buzzing Whack-a-Doodle

As Buzzing Whack-a-Doodle enters, you and an opponent each secretly choose Whack or Doodle. Then those choices are revealed. If the choices match, Buzzing Whack-a-Doodle has that ability. Otherwise, it has Buzz.
• Whack — {T}: Target player loses 2 life.
• Doodle — {T}: You gain 3 life.
• Buzz — {2}, {T}: Draw a card.

Mox Lotus

{T}: Add {∞}.
{100}: Add one mana of any color.

Crafty Octopus

When this creature enters, this creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Staff of the Letter Magus

As Staff of the Letter Magus enters, choose a consonant other than N, R, S, or T.
Whenever a player casts a spell, you gain 1 life for each time the chosen letter appears in that spell's name.

Incite Insight

Assemble X Contraptions. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Arms Depot

Whenever you crank Arms Depot, put two +1/+1 counters on target creature.

Jhoira, Ageless Innovator

{T}: Put two ingenuity counters on Jhoira, Ageless Innovator, then you may put an artifact card with mana value X or less from your hand onto the battlefield, where X is the number of ingenuity counters on Jhoira.

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.

Twiddlestick Charger

Whenever you crank Twiddlestick Charger, tap or untap target creature.

Six-y Beast

As Six-y Beast enters, 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.

Wall of Fortune

Defender
You may tap an untapped Wall you control to have any player reroll a die that player rolled.

Dogsnail Engine

Whenever you crank Dogsnail Engine, target player gains life equal to the greatest power among creatures you control.

Deal Damage

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.

Boomflinger

Whenever you crank Boomflinger, roll two six-sided dice. Boomflinger deals damage to target player or planeswalker equal to the difference between those results.

Contraption Cannon

{2}, Sacrifice Contraption Cannon: It deals damage to any target equal to the number of Contraptions you control.

Enraged Killbot

Box of Free-Range Goblins

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

Secret Base

{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.

Dispatch Dispensary

Whenever you crank Dispatch Dispensary, create a 2/2 black Rogue creature token with menace.

Sword of Dungeons & Dragons

Equipped creature gets +2/+2 and has protection from Rogues and from Clerics.
Whenever equipped creature deals combat damage to a player, create a 4/4 gold Dragon creature token with flying and roll a d20 (a twenty-sided die). If you roll a 20, repeat this process.
Equip {2}

Mer Man

When this creature enters, you may draw a card.

Bumbling Pangolin

When this creature enters, you may destroy target artifact.

B.O.B. (Bevy of Beebles)

As B.O.B. enters, create four 1/1 blue Beeble creature tokens.
The number of loyalty counters on B.O.B. is equal to the number of Beebles you control. (Create or sacrifice Beebles whenever B.O.B. gains or loses loyalty.)
+1: Up to X target Beebles can't be blocked this turn, where X is the number of cards in your hand.
−1: Draw a card.

_____

{1}: This card's name becomes the card name of your choice. Activate anywhere, anytime.

Just Desserts

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.))

Mountain

Island

Widget Contraption

Whenever you crank Widget Contraption, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

More or Less

Add or subtract 1 or one from a number or number word on target spell or permanent until end of turn.

Hard Hat Area

Whenever you crank Hard Hat Area, roll two six-sided dice. Hard Hat Area assembles a number of Contraptions equal to the difference between those results. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Everythingamajig

{2}, {T}: Draw a card. Activate only if you have no cards in hand.
{8}, {T}: You gain 10 life.
{4}, {T}, Sacrifice Everythingamajig: You may put a silver-bordered or acorn permanent card from your hand onto the battlefield.

Painiac

At the beginning of your upkeep, roll a six-sided die. Painiac gets +X/+0 until end of turn, where X is the result.

Garbage Elemental

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.)
Each creature you control with any kind of counter on it has art menace. (They can't be blocked except by creatures with two or more visible figures in their art.)

Applied Aeronautics

Whenever you crank Applied Aeronautics, until end of turn, target creature gets +1/+0, gains flying, and becomes an artifact in addition to its other types.

Labro Bot

When this creature enters, return target host card or card with augment from your graveyard to your hand.

Hurloon Wrangler

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

Party Crasher

Haste
You can attack with Party Crasher once each combat during each opponent's turn.

My First Tome

{1}, {T}: Say the flavor text on a card in your hand. Target opponent guesses that card's name. You may reveal that card. If you do and they guessed wrong, you draw a card.

Sol Ring

Work a Double

Assemble two Contraptions. (Put the top card of your Contraption deck face up onto one of your sprockets. Then repeat this process.)

Division Table

Whenever you crank Division Table, target player loses 2 life.

Common Courtesy

Whenever a player casts a spell without asking your permission while casting it, counter that spell.
When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy.

Delighted Killbot

Scissors Lizard

Creatures named Paper Tiger can't attack or block.

Double Header

Flying
When Double Header enters, you may return target permanent with a two-word name to its owner's hand.

Smart Ass

Whenever Smart Ass attacks, choose a card name. If defending player has no cards with the chosen name in their hand, they may reveal their hand. If they don't reveal their hand, Smart Ass can't be blocked this turn.

Wrench-Rigger

When Wrench-Rigger enters, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Clock of DOOOOOOOOOOOOM!

{4}, {T}: Move the CRANK! counter to your Contraption deck's next sprocket and crank any number of that sprocket's Contraptions.

Auto-Key

Whenever you crank Auto-Key, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: You gain 3 life."

Despondent Killbot

Rock Lobster

Creatures named Scissors Lizard can't attack or block.

Half-Shark, Half-

At the beginning of your upkeep,
Augment {5}{U} ({5}{U}, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

Socketed Sprocketer

{T}: Uninstall all results from Socketed Sprocketer, then roll a six-sided die. Install the result on Socketed Sprocketer. (Put the die on this card.)
You may uninstall a result from Socketed Sprocketer to use it for a die you rolled.
Uninstall a 6 from Socketed Sprocketer: Draw a card.

Inflation Station

Whenever you crank Inflation Station, target creature gets +3/+3 until end of turn.

Dumb Ass

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

Kindly Cognician

Spells you cast that refer to artifacts or Contraptions in their rules text cost {1} less to cast.

Graveyard Busybody

All graveyards are also your graveyards.
Graveyard Busybody's power and toughness are each equal to the number of cards with flavor text in your graveyards.

Blacker Lotus

{T}: Tear Blacker Lotus into pieces. Add four mana of any one color. Remove the pieces from the game.

Time Out

Roll a six-sided die. Put target nonland permanent into its owner's library just beneath the top X cards of that library, where X is the result.

Abstract Iguanart

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.