1125 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
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.
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
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
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
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 Squatters Avatar

Orcish Squatters Avatar

Vanguard
At the beginning of your precombat main phase, add {C} for each land target opponent controls.
Hand size bonus: -1
Life bonus: -1
  • Magic Online Avatars
Orim

Orim

Vanguard
Creatures you control have reach.
Trained in the Samite arts, Orim serves as the healer aboard the Weatherlight. She is quick with languages and was educated at the same Argivian university as Hanna. A student by nature, Orim keeps a diary of all her new discoveries—both physical and spiritual—during her travels.
Hand size bonus: +0
Life bonus: +12
  • Vanguard Series
Orochi Colony

Orochi Colony

Plane - Kamigawa
Whenever a creature you control deals combat damage to a player, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever chaos ensues, target creature can't be blocked this turn.
Orzhova

Orzhova

Plane - Ravnica
When you planeswalk away from Orzhova, each player returns all creature cards from their graveyard to the battlefield.
Whenever chaos ensues, for each opponent, exile up to one target creature card from that player's graveyard.
Otaria

Otaria

Plane - Dominaria
Instant and sorcery cards in graveyards have flashback. The flashback cost is equal to the card's mana cost.
Whenever chaos ensues, take an extra turn after this one.
Outfitted Jouster

Outfitted Jouster {2}{B}{R}

Creature - Human Knight
When Outfitted Jouster enters the battlefield, conjure a card named Steelclaw Lance and a card named Brawler's Plate onto the battlefield and attach them to Outfitted Jouster.
If damage would be dealt to Outfitted Jouster while it's equipped, prevent that damage. When damage is prevented this way, sacrifice an Equipment attached to Outfitted Jouster.
2/2
Related cards: Brawler's Plate Steelclaw Lance
  • Alchemy: Wilds of Eldraine
Overcooked

Overcooked {2}{R}

Enchantment
Players can't gain life.
Celebration — At the beginning of your end step, create a Food token. If two or more nonland permanents entered the battlefield under your control this turn, instead conjure a card named Food Fight onto the battlefield.
Related card: Food Fight
  • Alchemy: Wilds of Eldraine
Oyaminartok, Polar Werebear

Oyaminartok, Polar Werebear {2}{G}{G}

Legendary Creature - Giant Bear
Oyaminartok, Polar Werebear has hexproof if it hasn't dealt damage yet.
Whenever Oyaminartok deals combat damage to a player, create a Food token.
{U}, Sacrifice a Food: Draft a card from Oyaminartok's spellbook. When you do, add {U}{U}{U}. Spend this mana only to cast blue creature spells.
4/5
Related cards: Archipelagore Junk Winder Moat Piranhas Mystic Skyfish Nadir Kraken Nezahal, Primal Tide Pouncing Shoreshark Pursued Whale Riptide Turtle Ruin Crab Sea-Dasher Octopus Sigiled Starfish Spined Megalodon Stinging Lionfish Voracious Greatshark
  • Alchemy Horizons: Baldur's Gate
Painful Bond

Painful Bond {1}{B}

Instant
Draw two cards, then nonland cards in your hand with mana value 3 or less perpetually gain "When you cast this spell, you lose 1 life."
  • Alchemy: Kamigawa
Paliano

Paliano

Plane - Fiora
When one or more creatures you control deal combat damage to a player, if there is no monarch, you become the monarch.
Whenever chaos ensues, create a 1/1 black Assassin creature token with deathtouch and haste.
  • March of the Machine Commander
Pandora's Box

Pandora's Box {5}

Artifact
{3}, {T}: Choose a random summon card from all players' decks. For each player, flip a coin. If the flip ends up heads, put a token creature into play and treat it as though an exact copy of the chosen summon card were just played.
  • Astral Cards
Panopticon

Panopticon

Plane - Mirrodin
When you planeswalk to Panopticon, draw a card.
At the beginning of your draw step, draw an additional card.
Whenever chaos ensues, draw a card.