5968 cards found
Onyx Ritualist

Onyx Ritualist {2}{B}

Creature - Human Cleric
Flying
Spells your opponents cast cost an additional 2 life to cast.
“Demand retribution with every word you say. Eventually, someone will have to pay.”
3/1
Oozing Yaoguai

Oozing Yaoguai {2}{B}{G}

Creature - Frog Spirit
When Oozing Yaoguai enters or a creature scavenges it, up to one target creature gets -3/-3 until end of turn and you gain 3 life.
Scavenge {3}{B}{G} ({3}{B}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)
3/4
  • Panxiou
Opaline Drake

Opaline Drake {2}{U}{U}

Creature - Drake
Flying
At the beginning of your end step, up to one other target creature you control voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever a creature you control phases in, you may have it become a copy of target creature you control until end of turn.
3/3
  • Dark Seas of Shiryen
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 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.
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
Operative BABY

Operative BABY {2/W}{2/W}{2/W}

Artifact Creature - Elemental
Lifelink
Whenever Operative BABY attacks or you cast a black or red spell, create a 1/1 blue Elemental creature token with flying.
“What's higher than the top? That's me.”
4/4
  • Animus Vox
Operative GINGER

Operative GINGER {2/R}{2/R}{2/R}

Artifact Creature - Elemental
Menace
Whenever Operative GINGER attacks or you cast a blue or white spell, Operative GINGER deals 1 damage to any target.
“Let me show you what you've been missing.”
4/4
  • Animus Vox
Operative POSH

Operative POSH {2/U}{2/U}{2/U}

Artifact Creature - Elemental
Flash
Whenever Operative POSH attacks or you cast a green or red spell, exile up to one target nontoken permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.
“So keep your eyes on me now.”
4/4
  • Animus Vox
Operative SCARY

Operative SCARY {2/B}{2/B}{2/B}

Artifact Creature - Elemental
Deathtouch
Whenever Operative SCARY attacks or you cast a green or white spell, you may draw a card. If you do, you lose 2 life.
“Watch it fill you full of dread.”
4/4
  • Animus Vox
Operative SPORTY

Operative SPORTY {2/G}{2/G}{2/G}

Artifact Creature - Elemental
Ward {3}
Whenever Operative SPORTY attacks or you cast a blue or black spell, put a +1/+1 counter on Operative SPORTY.
“When you see me coming, get out of my way.”
4/4
  • Animus Vox
Ophan Titan

Ophan Titan {3}{G}

Creature - Angel
Ophan Titan gets +3/+3 as long as there are no nonland cards in your graveyard.
Morph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
“There, in the horizon. It's coming. Bring out the good ale and prepare the festival grounds. Today's the day we die.”
—Zehara, Bahumite village elder
3/3
  • MSEM Secret Lair Drops
  • Mious
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
Ophidian Oracle

Ophidian Oracle {3}{U}{R}

Creature - Human Shaman
When Ophidian Oracle enters, draw a card, then abound. (To abound, you may cast a spell that costs less than this from your hand without paying its mana cost.)
Recite {2}{G}{G} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)
4/4
  • Memorium Arcanum
  • MSEM Champions — 82 82
Ophorion Refugee

Ophorion Refugee {G}

Creature - Elf Druid
{T}: Add {G}. If you control an attacking creature, add one mana of any color instead.
0/1
Opportunistic Raiders

Opportunistic Raiders {2}{B/R}{B/R}

Creature - Human Rogue
Bleed {1}{B/R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Haste
When Opportunistic Raiders enters, if it's your main phase, after this phase, there is an additional combat phase followed by an additional main phase.
3/3
  • A Tourney at Whiterun
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.
Opt

Opt {U}

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

Oracle's Disciple {U/R}{U/R}

Creature - Human Wizard Knight
Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn.
“Symmetry precludes mystery. Only where it is broken by imbalance can we find something to puzzle over.”
2/2
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 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