15897 cards found
Onya's Study

Onya's Study {R}{W}{B}

Enchantment - Study
Archive 6 (As this enters, shuffle the top six cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever a creature or planeswalker you control dies, you may play a card from the archived library. (You still pay its costs.)
Opalescent Heirloom

Opalescent Heirloom {X}

Artifact - Equipment
Opalescent Heirloom enters with a charge counter on it for each color of mana spent to cast it.
Equipped creature gets +1/+1 for each charge counter on Opalescent Heirloom.
Equip—{3} or remove a charge counter from Opalescent Heirloom.
  • Panxiou
Opalescent Palace

Opalescent Palace

Land
{T}: Add {U} or {R}. You lose 1 life unless you have less life than an opponent.
In his pilgrimage to the Mirror Pools, Lei Gong discovered the more literal secrets of self-reflection.
  • Panxiou
Open Eyes

Open Eyes {G}{U}

Sorcery - Adventure
Search your library for a land card, reveal it, then shuffle and put that card on top. (Then exile this card. You may play the land later from exile.)
Card has other part: Northrime Aurora
  • Adventurers of Onora
Open Road

Open Road {R}

Enchantment
Whenever Open Road or another permanent you control enters, if it has the greatest mana value among permanents you control, you may discard a card. If you do, draw a card.
Open Source

Open Source {2}

Enchantment
At the beginning of your upkeep, each player conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)
“In a just world there is no ownership. Creation belongs to us all.”
—Sallmar, Father of the Free
Related card: Data-Point
  • Beyond the Blackwall
Open the Cryo-Chambers

Open the Cryo-Chambers {4}{B}

Instant
Return target creature card from your graveyard to the battlefield, then rediscover a creature card. (Look at the top card of your library. You may reveal it and put it into your hand if it's a creature card. Otherwise, put it back or into your graveyard.)
  • Lovi Awoken
Open the Hive

Open the Hive {1}{W}{W}

Sorcery
For each nonland token you control, create a token that's a copy of it.
The insect queen had run out of patience. She would stake her claim here, no matter what the current inhabitants had to say about it.
  • Sparks of a Multiverse
Open the Secret Paths

Open the Secret Paths {2}{U}

Instant
Exile two target permanents you control, then return them to the battlefield under your control.
Open the Tomb

Open the Tomb {1}{R}

Instant
Destroy target artifact. Scry 1.
“I know I was getting involved with some dangerous people, but I never imagined an expedition to Qalam!”
—Enam, mystic warrior
  • Riddles of Revio
Open the Wilds

Open the Wilds {G}{G}

Enchantment
At the beginning of your upkeep, reveal the bottom card of your library. You may cast it if it's a creature card. Otherwise, exile it.
Silence is just the sound of something planning to eat you.
  • Oirohpo
Opera House

Opera House

Land
Opera House enters tapped.
When Opera House enters, add one mana of any color.
{T}, Sacrifice Opera House: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
  • Feanav: The Apothecary's Progress
Operation 433

Operation 433 {1}{B}

Sorcery
Search your library for a creature or sorcery card, put it into your graveyard, then shuffle.
Reconstruct {2}{B} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)
  • Animus Vox
Ophidian Augury

Ophidian Augury {4}{U}{U}

Enchantment
Once each turn, you may pay {U} rather than pay the mana cost for a blue spell you cast.
“See the beyond. Taste it. Consume it as it consumes you. Become one with the infinite void and learn true power.”
  • Kahembo: Olde Dawn
Oppress the Weak

Oppress the Weak {U}{B}

Instant
Target creature gets -4/-4 until end of turn.
Civilized — Draw a card if you control an artifact, a creature, and an enchantment.
“Until my dying breath,” he whispered, cradling the youngling to his breast.
Oppressive Rays

Oppressive Rays {W}

Enchantment - Aura
Enchant creature
Enchanted creature can't attack or block unless its controller pays {3}.
Activated abilities of enchanted creature cost {3} more to activate.
Staring down the Lotus and merely being blinded would be a mercy.
  • Novea
Oppressive Tithes

Oppressive Tithes {3}{W}{W}

Enchantment
Creatures can't attack you unless their controller pays {3} for each of those creatures.
While many temples practice kindness and charity, some house more golden coins than golden hearts.
  • Mious
Opt

Opt {U}

Instant
Scry 1.
Draw a card.
“I stole Death long ago, and search now for the dark path.”
—Ranni the Witch
Opulent Reprise

Opulent Reprise {U}{R}

Sorcery
Draw three cards, then discard two cards.
While critically panned, director Halem's rendition of The Girl Who Still Wouldn't Die earned him wealth galore — and a cult following.
  • The Stage Presents: The Neverending Act
Oracle's Omission

Oracle's Omission {U}

Instant
Search your library for up to six cards and exile them face down. Shuffle, then draw a card.
“Did the sphinxes betray us, or were they blinded by a greater force?”
  • The Unraveling
Oracle's Ploy

Oracle's Ploy {B}

Enchantment - Aura
Enchant creature
Enchanted creature gets -3/-3.
When enchanted creature dies, its controller may scry 1.
A master fortune teller knows when you should tell someone's fortune, and when you should create someone's fortune.
  • Eralou
Oracle's Vision

Oracle's Vision {U/B}

Sorcery
Each player mills three cards.
Draw a card.
You shall go west, and face the god who has turned,
You shall find what was stolen, and see it safely returned,
You shall be betrayed by one who calls you a friend,
And you shall fail to save what matters most, in the end.
Orb of Undoing

Orb of Undoing {3}

Artifact
Whenever another nonland permanent you control enters, return that permanent to its owner's hand at the beginning of the next end step.
  • The Unraveling
Ordeal of Kaneh

Ordeal of Kaneh {4}{B}

Sorcery
Target creature gets -5/-5 until end of turn.
Judge up to one target creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)
“Order. Chaos. Both are tools to control. Both are meaningless to victory.”
—Omid, the Undefeated
  • Alkabah
Order Module

Order Module {2}{W}{W}

Enchantment - Module
(Activate each submodule once as a sorcery. When this enters, activate one submodule for free.)
{W}{W}{W}: Purpose
Create three 1/1 white Spirit creature tokens with flying.
{W}{W}{W}: Justice
Exile target nonland permanent you don't control until Order Module leaves the battlefield.
{W}{W}{W}: Unity
Order Module gains “Creatures you control get +1/+1.”