4124 cards found
Omarthis, Ghostfire Initiate

Omarthis, Ghostfire Initiate {X}{X}

Legendary Creature - Spirit Naga
Omarthis, Ghostfire Initiate enters the battlefield with X +1/+1 counters on it.
Whenever you put one or more +1/+1 counters on another colorless creature, you may put a +1/+1 counter on Omarthis.
When Omarthis dies, manifest a number of cards from the top of your library equal to the number of counters on it.
0/0
  • Commander Masters 708 748
Omega Myr

Omega Myr {2}

Artifact Creature - Myr
Last to charge, last to fall.
1/2
  • Mirrodin
Omen Machine

Omen Machine {6}

Artifact
Players can't draw cards.
At the beginning of each player's draw step, that player exiles the top card of their library. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.
  • New Phyrexia
Ominous Cemetery

Ominous Cemetery

Land
{T}: Add {C}.
{5}, {T}, Exile Ominous Cemetery: Target creature's owner shuffles it into their library.
"They are fast. Faster than you can believe. Don't turn your back, don't look away, and don't blink."
—The Tenth Doctor
  • Doctor Who 189 794
Ominous Parcel

Ominous Parcel {1}

Artifact
{2}, {T}, Sacrifice Ominous Parcel: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{5}, {T}, Sacrifice Ominous Parcel: It deals 4 damage to target creature.
The rest of Anhelo's assistant arrived over the following week.
Related card: Ominous Parcel (Alchemy)
  • Streets of New Capenna
Ominous Parcel (Alchemy)

Ominous Parcel (Alchemy) {1}

Artifact
{1}, {T}, Sacrifice Ominous Parcel: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{5}, {T}, Sacrifice Ominous Parcel: It deals 4 damage to target creature.
Related card: Ominous Parcel
  • Streets of New Capenna
Ominous Traveler

Ominous Traveler {2}

Creature - Human
When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand."
1/1
Related cards: Archghoul of Thraben Bladestitched Skaab Champion of the Perished Dominating Vampire Falkenrath Pit Fighter Headless Rider Heron-Blessed Geist Howlpack Piper Patrician Geist Shipwreck Sifters Steelclad Spirit Stromkirk Bloodthief Tovolar, Dire Overlord Tovolar, the Midnight Scourge Vampire Socialite Wedding Crasher Wildsong Howler Wolfkin Outcast
  • Alchemy: Innistrad
Onakke Catacomb

Onakke Catacomb

Plane - Shandalar
All creatures are black and have deathtouch.
Whenever chaos ensues, creatures you control get +1/+0 and gain first strike until end of turn.
Ondu Skyruins
Ondu Inversion

Ondu Skyruins

Land
Ondu Skyruins enters the battlefield tapped.
{T}: Add {W}.
"It always seems so quiet in the aftermath of wrenching violence."
—Nys Dal, Sea Gate trapfinder
Card has other part: Ondu Inversion
One-Eyed Scarecrow

One-Eyed Scarecrow {3}

Artifact Creature - Scarecrow
Defender
Creatures with flying your opponents control get -1/-0.
Farmhands and priests mutter curses at the ragged thing; it unnerves more than just the crows.
2/3
  • Innistrad
Oni of Wild Places Avatar

Oni of Wild Places Avatar

Vanguard
Creatures you control have haste.
At the beginning of your upkeep, return a creature you control to its owner's hand.
Hand size bonus: +0
Life bonus: -2
  • Magic Online Avatars
Only Blood Ends Your Nightmares

Only Blood Ends Your Nightmares

Scheme
When you set this scheme in motion, each opponent sacrifices a creature. Then each opponent who didn't sacrifice a creature discards two cards.
"But nothing will end your regret."
  • Archenemy Schemes
Onulet

Onulet {3}

Artifact Creature - Construct
When Onulet dies, you gain 2 life.
An early inspiration for Urza, Tocasia's Onulets contained magical essences that could be cannibalized after they stopped functioning.
2/2
Related card: Golgothian Sylex
Onyx Talisman

Onyx Talisman {2}

Artifact
Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.
  • Ice Age
Ood Sphere

Ood Sphere

Plane - Horsehead Nebula
Song of the Ood — Noncreature spells have convoke.
Red-Eye — Whenever chaos ensues, for each opponent, goad up to one target creature that opponent controls. Until your next turn, those creatures can't become tapped unless they're being declared as attackers.
  • Doctor Who
Opal Palace

Opal Palace

Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters the battlefield with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.
Opaline Bracers

Opaline Bracers {4}

Artifact - Equipment
Sunburst
Equipped creature gets +X/+X, where X is the number of charge counters on Opaline Bracers.
Equip {2}
  • Fifth Dawn
Opaline Unicorn

Opaline Unicorn {3}

Artifact Creature - Unicorn
{T}: Add one mana of any color.
Purphoros once loved Nylea, the god of the hunt. His passion inspired his most astounding works of art.
1/2
Optical Optimizer

Optical Optimizer

Artifact - Contraption
Whenever you crank Optical Optimizer, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: Draw a card."
  • Unstable
Opulent Palace

Opulent Palace

Land
Opulent Palace enters the battlefield tapped.
{T}: Add {B}, {G}, or {U}.
The dense jungle surrenders to a lush and lavish expanse. At its center uncoil the spires of Qarsi Palace.
Oracle

Oracle

Vanguard
{0}: Untap target attacking creature you control and remove it from combat.
Known simply by her title, Oracle uses her gift of prophecy to aid her people. She believes Gerrard to be the Korvecdal, the one who will unite the people of Rath against Volrath's tyranny. Her only doubt is whether she will be strong enough to guide him to his destiny.
Hand size bonus: +1
Life bonus: +9
  • Vanguard Series
Oracle of Dust

Oracle of Dust {4}{U}

Creature - Eldrazi Processor
Devoid
{2}, Put a card an opponent owns from exile into that player's graveyard: Draw a card, then discard a card.
Whatever it is searching for, it will stop at nothing to find it.
3/5
  • Battle for Zendikar
Oracle's Vault

Oracle's Vault {4}

Artifact
{2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault.
{T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.
Oran-Rief, the Vastwood

Oran-Rief, the Vastwood

Land
Oran-Rief, the Vastwood enters the battlefield tapped.
{T}: Add {G}.
{T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn.
Orazca Relic

Orazca Relic {3}

Artifact
Ascend
{T}: Add {C}.
{T}, Sacrifice Orazca Relic: You gain 3 life and draw a card. Activate only if you have the city's blessing.
Related card: Break Expectations