Avacyn's Collar, the Symbol of Her Church

Equipped creature can't attack, block, or transform, and its activated abilities can't be activated.
Shackle {3} ({3}: Attach to target creature you don't control. Shackle only as a sorcery.)

Math is for Blockers

Damage can't be prevented this turn.
Creatures you control have double strike, trample, and must attack if able until end of turn.

Scrubland

Bloodstained Mire

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

Hold the Perimeter

(Start the game with this conspiracy face up in the command zone.)
At the beginning of your first upkeep, create a 1/2 white Soldier creature token with defender.
At the beginning of each other player's first upkeep, that player creates a 1/1 red Goblin creature token with "This creature can't block."

Plateau

Mathas, Fiend Seeker

Menace
At the beginning of your end step, put a bounty counter on target creature an opponent controls. For as long as that creature has a bounty counter on it, it has "When this creature dies, each opponent draws a card and gains 2 life."

Avacyn and Griselbrand

Flying, vigilance, lifelink
Pay 8 life: Each creature you control gains indestructible until end of turn. Then, draw a card for each creature you control.

Luxury Suite

Luxury Suite enters tapped unless you have two or more opponents.
{T}: Add {B} or {R}.

Face to Face

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.

Mox Pearl

Vault of Champions

Vault of Champions enters tapped unless you have two or more opponents.
{T}: Add {W} or {B}.

Evil Boros Charm

Choose one —
• Evil Boros Charm deals 2 damage to any target and you gain 2 life.
• Unblocked attacking creatures get +1/+0 until end of turn.
• Create a 1/1 colorless Spirit creature token with lifelink and haste.

Karakas

{T}: Add {W}.
{T}: Return target legendary creature to its owner's hand.

Rugged Prairie

{T}: Add {C}.
{R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.

Cardpecker

Flying
Gotcha — If an opponent touches the table with their hand, you may say "Gotcha!" When you do, return Cardpecker from your graveyard to your hand.

Knife and Death

Just a second (As long as this spell is on the stack, players can't move permanents.)
One at a time, throw ten cards you own from outside the game onto the playing area from a distance of at least three feet (about one meter). For each of those cards, Knife and Death deals 1 damage to each creature or planeswalker you don't control that card is touching. You gain life equal to the damage dealt this way.

Swamp

Autograph Book

Autograph Book enters with a page counter on it for each person who has signed it.
{3}, {T}, Remove a page counter from Autograph Book: Draw a card.

Pinkie Pie

Whenever you cast a spell with a smile in its art, create a tapped Treasure token.
Everypony's Invited — Your party consists of each creature you control, and your party is always full.

Aggressive Crag

At the beginning of your combat step, tap Aggressive Crag.
{T}: Add {R} or {W}.

Adorable Kitten

When this creature enters, roll a six-sided die. You gain life equal to the result.

capital offense

target creature gets -x/-x until end of turn, where x is the number of times a capital letter appears in its rules text. (ignore reminder text and flavor text.)

Griselbrand

Flying, lifelink
Pay 7 life: Draw seven cards.

Nomad Outpost

Nomad Outpost enters tapped.
{T}: Add {R}, {W}, or {B}.

Sacred Foundry

({T}: Add {R} or {W}.)
As Sacred Foundry enters, you may pay 2 life. If you don't, it enters tapped.

Falling Star

Flip Falling Star onto the playing area from a height of at least one foot. Falling Star deals 3 damage to each creature it lands on. Tap all creatures dealt damage by Falling Star. If Falling Star doesn't turn completely over at least once during the flip, it has no effect.

Deadhead

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

Smoldering Marsh

({T}: Add {B} or {R}.)
Smoldering Marsh enters tapped unless you control two or more basic lands.

Fire

Fire deals 2 damage divided as you choose among one or two targets.

Start

Create two 1/1 white Warrior creature tokens with vigilance.

Start // Fire

Graven Cairns

{T}: Add {C}.
{B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.

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.

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

A Real Handful

As long as one or more hands are touching A Real Handful, it gets +2/+2.
As long as two or more hands are touching A Real Handful, it has menace.
As long as three or more hands are touching A Real Handful, it has lifelink.

Cheap Ass

Rare-B-Gone

Each player sacrifices all permanents that are rare or mythic rare, then each player reveals their hand and discards all cards that are rare or mythic rare.

Animate Graveyard

Enchant your graveyard
Enchanted graveyard is a creature on the battlefield with base power and toughness each equal to the number of cards in it. It has the text boxes of all creature cards in it. It's still a graveyard.
If enchanted graveyard would leave the battlefield, instead exile Animate Graveyard.

Mox Ruby

Bosom Buddy

Whenever you cast a spell, you may gain ½ life for each word in that spell's name.

Badlands

Panoptic Mirror

Imprint — {X}, {T}: You may exile an instant or sorcery card with mana value X from your hand.
At the beginning of your upkeep, you may copy a card exiled with Panoptic Mirror. If you do, you may cast the copy without paying its mana cost.

Bad Ass

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.

Urza's Science Fair Project

{2}: Roll a six-sided die. Urza's Science Fair Project gets the indicated result.
1 — It gets -2/-2 until end of turn.
2 — Prevent all combat damage it would deal this turn.
3 — It gains vigilance until end of turn.
4 — It gains first strike until end of turn.
5 — It gains flying until end of turn.
6 — It gets +2/+2 until end of turn.

Boros Garrison

Boros Garrison enters tapped.
When Boros Garrison enters, return a land you control to its owner's hand.
{T}: Add {R}{W}.

Blood Crypt

({T}: Add {B} or {R}.)
As Blood Crypt enters, you may pay 2 life. If you don't, it enters tapped.

Clay Pigeon

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.

Mountain

A Good Thing

Spells and abilities you control can't destroy, exile, target, or cause you to sacrifice A Good Thing.
At the beginning of your upkeep, double your life total. Then, if you have 1,000 or more life, you lose the game.

Sol Ring

Rakdos Carnarium

Rakdos Carnarium enters tapped.
When Rakdos Carnarium enters, return a land you control to its owner's hand.
{T}: Add {B}{R}.

Amped Up

This spell costs {1} less to cast for each electrical socket in a wall or floor you can see from your seat.
Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gets +3/+0 and gains haste.

Shahrazad

Players play a Magic subgame, using their libraries as their decks. Each player who doesn't win the subgame loses half their life, rounded up.

The Sprinkler of Stardust

Whenever The Sprinkler of Stardust attacks, look at the top six cards of your library. You may put an instant or sorcery card from among them onto the battlefield tapped and attacking. It becomes a 2/2 creature with "Whenever this deals combat damage to an opponent, cast a copy of this card." (The 2/2 creature stays on the battlefield.) Put the rest of the cards on the bottom of your library in a random order.

Disemvowel

Destroy target creature. That creature's controller loses 1 life for each unique vowel in the creature's name. (The vowels are A, E, I, O, U, and Y.)

Spectator Seating

Spectator Seating enters tapped unless you have two or more opponents.
{T}: Add {R} or {W}.

Tainted Peak

{T}: Add {C}.
{T}: Add {B} or {R}. Activate only if you control a Swamp.

Mana Crypt

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.
{T}: Add {C}{C}.

Godless Shrine

({T}: Add {W} or {B}.)
As Godless Shrine enters, you may pay 2 life. If you don't, it enters tapped.

Bloodletter

When the names of three or more nonland permanents begin with the same letter, sacrifice Bloodletter. If you do, it deals 2 damage to each creature and each player.

Tainted Field

{T}: Add {C}.
{T}: Add {W} or {B}. Activate only if you control a Swamp.

Ashnod's Coupon

{T}, Sacrifice Ashnod's Coupon: Target player gets you target drink. You pay any costs for the drink.

Blast from the Past

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.

Extremely Slow Zombie

Last strike (This creature deals combat damage after creatures without last strike.)

Zzzyxas's Abyss

At the beginning of your upkeep, destroy all nonland permanents with the first name alphabetically among nonland permanents.

AWOL

Exile target attacking creature. Then remove it from the game. Then put it into the absolutely-removed-from-the-freaking-game-forever zone.

City of Ass

City of Ass enters tapped.
{T}: Add one and one-half mana of any one color.

Command Tower

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

Jeweled Lotus

{T}, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

Ass Whuppin'

Destroy target silver-bordered or acorn permanent in any game you can see from your seat.

Barry's Land

Atinlay Igpay

Oubleday ikestray
Enwhay ouyay eakspay ay onnay-igpay-atinlay ordway, acrificesay Atinlay Igpay.

Dwarven Confluencer

{T}: Destroy target nontoken land. Its controller creates a Mana Confluence token. (It's a land with "{T}, Pay 1 life: Add one mana of any color.")

The Countdown Is at One

Players play a Magic subgame, starting at 1 life and using their libraries as their decks. For the rest of the main game, if a source would deal damage to a player who didn't win the subgame, it deals double that damage to that player instead.

Plains

Chivalrous Chevalier

Flying
When Chivalrous Chevalier enters, return a creature you control to its owner's hand unless you compliment an opponent.

Chaos Wrap

The owner of target permanent shuffles it into their library. Then they may look at the top card of their library and may wrap it. If it's a permanent card, they may put it onto the battlefield. Otherwise, they may put it onto the battlefield face down as a 4/4 red Present creature. (To wrap a card, put it inside lots of sleeves. If it would be dealt damage or destroyed, remove a sleeve from it instead.)

Arid Mesa

{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

Fetid Heath

{T}: Add {C}.
{W/B}, {T}: Add {W}{W}, {W}{B}, or {B}{B}.

Main Event Horizon

As an additional cost to cast this spell, choose A through M or N through Z.
Destroy each creature whose name begins with a letter in the chosen range.

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Orzhov Basilica

Orzhov Basilica enters tapped.
When Orzhov Basilica enters, return a land you control to its owner's hand.
{T}: Add {W}{B}.

Pithing Spyglass

As Pithing Spyglass enters, name a keyword ability or ability word.
All cards in all zones lose that keyword ability or ability word and all text tied to that ability.

Bog Humbugs

Flying
Whenever Bog Humbugs deals combat damage, hum that many notes of a festive song. If you can, put a +1/+1 counter on Bog Humbugs.

Mox Jet

Blood Poet

Spark (Activate spark abilities by spending or giving yourself spark counters. Activate only one spark ability per turn, and only as a sorcery.)
+1: Blood Poet gains lifelink until end of turn.
−3: Target opponent discards a card. You gain life equal to its converted mana cost.

Arcane Signet

Subcontract

A person outside the game looks at target opponent's hand and chooses a nonland card from it. That player discards that card.

Grand Marshal Macie

You may choose not to untap Grand Marshal Macie during your untap step. If you do, put a pause counter on it, then you lose 1 life for each pause counter on it.
Whenever Macie becomes untapped, remove all pause counters from it.
{2}, {T}: Choose an "until end of turn" or "this turn" effect. As long as Macie remains tapped, that effect doesn't end.

Marsh Flats

{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

Indicate

Reliquary Tower

You have no maximum hand size.
{T}: Add {C}.

Boulder Jockey

({D} is a land drop. You may give up one potential land drop this turn to pay for {D}.)
Whenever Boulder Jockey attacks, you may pay {D}. If you do, create a 3/3 colorless Construct artifact creature token named Boulder that's tapped and attacking. Sacrifice that token at the beginning of the next end step.

Once More with Feeling

Exile all permanents and all cards from all graveyards. Each player shuffles their hand into their library, then draws seven cards. Each player's life total becomes 10. Exile Once More with Feeling.
DCI ruling — A deck can have only one card named Once More with Feeling.

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Savai Triome

({T}: Add {R}, {W}, or {B}.)
Savai Triome enters tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)

Black Tulip

{T}, Exile Black Tulip: Add three mana of any one color. You can't activate this ability until you've begun your sixth turn of the game. (Keep track if this is in your deck!)

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.

Discord, Lord of Disharmony

Flying
At the beginning of your end step, choose a random nonland Magic card name. Until your next end step, you may cast a copy of a spell with that name, and mana of any type can be spent to cast it. If you cast a spell this way, copy this ability if Discord is on the battlefield.

Destroy target creature with reminder text. (Reminder text is any italicized text in parentheses that explains rules you already know.)

Boomstacker

As Boomstacker enters 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.