Skull of Orm

{5}, {T}: Return target enchantment card from your graveyard to your hand.

Arena of the Ancients

Legendary creatures don't untap during their controllers' untap steps.
When Arena of the Ancients enters, tap all legendary creatures.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Phyrexian Colossus

Phyrexian Colossus doesn't untap during your untap step.
Pay 8 life: Untap Phyrexian Colossus.
Phyrexian Colossus can't be blocked except by three or more creatures.

Nevinyrral's Disk

Nevinyrral's Disk enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Grinning Totem

{2}, {T}, Sacrifice Grinning Totem: Search target opponent's library for a card and exile it. Then that player shuffles. Until the beginning of your next upkeep, you may play that card. At the beginning of your next upkeep, if you haven't played it, put it into its owner's graveyard.

Obelisk of Undoing

{6}, {T}: Return target permanent you both own and control to your hand.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Jandor's Saddlebags

The Hive

{5}, {T}: Create a 1/1 colorless Insect artifact creature token with flying named Wasp. (It can't be blocked except by creatures with flying or reach.)

Ensnaring Bridge

Creatures with power greater than the number of cards in your hand can't attack.

Elkin Bottle

{3}, {T}: Exile the top card of your library. Until the beginning of your next upkeep, you may play that card.

Library of Leng

You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

Snake Basket

{X}, Sacrifice Snake Basket: Create X 1/1 green Snake creature tokens. Activate only as a sorcery.

Barl's Cage

{3}: Target creature doesn't untap during its controller's next untap step.

Serrated Arrows

Serrated Arrows enters with three arrowhead counters on it.
At the beginning of your upkeep, if there are no arrowhead counters on Serrated Arrows, sacrifice it.
{T}, Remove an arrowhead counter from Serrated Arrows: Put a -1/-1 counter on target creature.

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Storage Matrix

As long as Storage Matrix is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.

Jayemdae Tome

Loxodon Warhammer

Equipped creature gets +3/+0 and has trample and lifelink.
Equip {3}

Dragon Mask

{3}, {T}: Target creature you control gets +2/+2 until end of turn. Return it to its owner's hand at the beginning of the next end step. (Return it only if it's on the battlefield.)

Fountain of Youth

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Millstone

Fodder Cannon

{4}, {T}, Sacrifice a creature: Fodder Cannon deals 4 damage to target creature.

Amber Prison

You may choose not to untap Amber Prison during your untap step.
{4}, {T}: Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as Amber Prison remains tapped.

Mana Vault

Mana Vault doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.

Book of Rass

Horn of Deafening

{2}, {T}: Prevent all combat damage that would be dealt by target creature this turn.

Spellbook

Teferi's Puzzle Box

At the beginning of each player's draw step, that player puts the cards in their hand on the bottom of their library in any order, then draws that many cards.

Cursed Totem

Activated abilities of creatures can't be activated.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Jester's Cap

{2}, {T}, Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles.

Time Bomb

At the beginning of your upkeep, put a time counter on Time Bomb.
{1}, {T}, Sacrifice Time Bomb: Time Bomb deals damage equal to the number of time counters on it to each creature and each player.

Ashnod's Transmogrant

{T}, Sacrifice Ashnod's Transmogrant: Put a +1/+1 counter on target nonartifact creature. That creature becomes an artifact in addition to its other types.

Sol Ring

Slate of Ancestry

{4}, {T}, Discard your hand: Draw a card for each creature you control.

Pit Trap

{2}, {T}, Sacrifice Pit Trap: Destroy target attacking creature without flying. It can't be regenerated.

Star Compass

Star Compass enters tapped.
{T}: Add one mana of any color that a basic land you control could produce.

Bottle Gnomes

Sacrifice Bottle Gnomes: You gain 3 life.

Triskelion

Triskelion enters with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

Ur-Golem's Eye

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Defense Grid

Each spell costs {3} more to cast except during its controller's turn.

Ashnod's Altar

Triassic Egg

{3}, {T}: Put a hatchling counter on Triassic Egg.
Sacrifice Triassic Egg: Choose one. Activate only if there are two or more hatchling counters on Triassic Egg.
• You may put a creature card from your hand onto the battlefield.
• Return target creature card from your graveyard to the battlefield.

Static Orb

As long as Static Orb is untapped, players can't untap more than two permanents during their untap steps.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Sisay's Ring

Coat of Arms

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Planar Portal

{6}, {T}: Search your library for a card, put that card into your hand, then shuffle.