3627 cards found
Ominous Lockbox

Ominous Lockbox {1}{U}

Artifact - Clue
As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20.
When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy.
{2}, Sacrifice Ominous Lockbox: Draw a card.
  • Alchemy: Murders at Karlov Manor
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
Omnath, Locus of Creation (Alchemy)

Omnath, Locus of Creation (Alchemy) {1}{R}{G}{W}{U}

Legendary Creature - Elemental
When Omnath, Locus of Creation enters the battlefield, draw a card.
Landfall — Whenever a land enters the battlefield under your control, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.
4/4
Related card: Omnath, Locus of Creation
  • Zendikar Rising
Omniclown Colossus

Omniclown Colossus {8}{R}{R}

Artifact Creature - Clown Robot
Affinity for Clowns (This spell costs {1} less to cast for each Clown you control.)
Trample
7/7
Card has other part: Pie-roclasm
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.
Once More with Feeling

Once More with Feeling {W}{W}{W}{W}

Sorcery
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.
If yo . . . ted.
  • Unglued
One with Death

One with Death {B}

Instant
You lose the game.
One-Clown Band

One-Clown Band {1}{R}

Artifact Creature - Clown Robot Bard
{2}{R}: Target Robot gets +2/+0 until end of turn.
Programmed to play more than seventy instruments and only one song.
1/3
  • Unfinity 117 403
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
Only the Best

Only the Best {1}{W}

Sorcery - Adventure
Return target Booster Fun card from your graveyard to your hand.
Card has other part: Collectigull
  • 2019 Heroes of the Realm
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
Opening Ceremony

Opening Ceremony {4}{R}{R}

Sorcery
Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack.
"Oooooh!"
—The crowd
"Aaaaaaaaah!"
—Also the crowd
  • Unfinity 118 404
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
Optimus Prime, Inspiring Leader

Optimus Prime, Inspiring Leader {3}{R}{W}

Legendary Artifact Creature - Autobot
{1}: Turn target permanent you control to its other face.
{1}: Until end of turn, Optimus Prime, Inspiring Leader becomes a Construct with base power and toughness 6/6 and creatures you control gain trample.
"Roll out!"
4/5
  • 2018 Heroes of the Realm
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 the Alpha

Oracle of the Alpha {2}{U}

Creature - Bird Wizard
Flying
When Oracle of the Alpha enters the battlefield, conjure the Power Nine into your library, then shuffle.
Whenever Oracle of the Alpha attacks, scry 1.
2/3
Related cards: Ancestral Recall Black Lotus Mox Emerald Mox Jet Mox Pearl Mox Ruby Mox Sapphire Time Walk Timetwister
  • Alchemy: Dominaria
Oran-Rief Ooze (Alchemy)

Oran-Rief Ooze (Alchemy) {2}{G}

Creature - Ooze
When Oran-Rief Ooze enters the battlefield, put a +1/+1 counter on target creature you control.
Whenever Oran-Rief Ooze attacks, put a +1/+1 counter on each creature you control with a +1/+1 counter on it.
2/2
Related card: Oran-Rief Ooze
  • Zendikar Rising
Orchard Elemental

Orchard Elemental {5}{G}

Creature - Elemental
Council's dilemma — When Orchard Elemental enters the battlefield, starting with you, each player votes for sprout or harvest. Put two +1/+1 counters on Orchard Elemental for each sprout vote. You gain 3 life for each harvest vote.
Fruits for friends, fists for foes.
2/2
  • Conspiracy: Take the Crown
Orcish Bowmasters (Alchemy)

Orcish Bowmasters (Alchemy) {1}{B}

Creature - Orc Archer
Flash
Whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target. Then amass Orcs 1.
1/1
Related card: Orcish Bowmasters
  • The Lord of the Rings: Tales of Middle-earth
Orcish Catapult

Orcish Catapult {X}{R}{R}

Instant
Randomly distribute X -0/-1 counters among a random number of random target creatures.
  • Astral Cards
Orcish Mine

Orcish Mine {1}{R}{R}

Enchantment - Aura
Enchant land
Orcish Mine enters the battlefield with three ore counters on it.
At the beginning of your upkeep or whenever enchanted land becomes tapped, remove an ore counter from Orcish Mine.
When the last ore counter is removed from Orcish Mine, destroy enchanted land and Orcish Mine deals 2 damage to that land's controller.
Related card: Apocalypse Chime
  • Homelands
Orcish Paratroopers

Orcish Paratroopers {2}{R}

Creature - Orc Paratrooper
When Orcish Paratroopers enters the battlefield, flip it from a height of at least one foot. Sacrifice Orcish Paratroopers unless it turns over completely at least once during the flip and lands face up.
IOU one parashoot
—Urk, mogg fanatic
4/4
  • Unhinged
Ordinary Pony

Ordinary Pony {2}{W}

Host Creature - Horse
When this creature enters the battlefield, you may exile target non-Horse creature you control that wasn't put onto the battlefield with this ability this turn, then return it to the battlefield under its owner's control.
2/3