16065 cards found
Olivia, Opulent Outlaw

Olivia, Opulent Outlaw {1}{R}{W}{B}

Legendary Creature - Vampire Assassin
Flying, lifelink
Whenever one or more outlaws you control deal combat damage to a player, create a Treasure token.
{3}, Sacrifice two Treasures: Put two +1/+1 counters on each creature you control. Activate only as a sorcery.
3/3
  • Outlaws of Thunder Junction Commander
Oloro, Ageless Ascetic

Oloro, Ageless Ascetic {3}{W}{U}{B}

Legendary Creature - Giant Soldier
At the beginning of your upkeep, you gain 2 life.
Whenever you gain life, you may pay {1}. If you do, draw a card and each opponent loses 1 life.
At the beginning of your upkeep, if Oloro, Ageless Ascetic is in the command zone, you gain 2 life.
4/5
Oltec Matterweaver

Oltec Matterweaver {2}{W}

Creature - Human Artificer
Whenever you cast a creature spell, choose one —
• Create a 1/1 colorless Gnome artifact creature token.
• Create a token that's a copy of target artifact token you control.
2/4
  • The Big Score 3 33 68
  • Wizards Play Network 2024
Omen

Omen {1}{U}

Sorcery
Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.
  • Portal
Omen of Fire

Omen of Fire {3}{R}{R}

Instant
Return all Islands to their owners' hands. Each player sacrifices a Plains or a white permanent for each white permanent they control.
"Let Balduvia burn to warm Kjeldor's hearth!"
—General Varchild
  • Alliances
Omenspeaker

Omenspeaker {1}{U}

Creature - Human Wizard
When Omenspeaker enters the battlefield, scry 2.
Her prophecies amaze her even as she speaks them.
1/3
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 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 Seas

Ominous Seas {1}{U}

Enchantment
Whenever you draw a card, put a foreshadow counter on Ominous Seas.
Remove eight foreshadow counters from Ominous Seas: Create an 8/8 blue Kraken creature token.
Cycling {2}
Ominous Sphinx

Ominous Sphinx {3}{U}{U}

Creature - Sphinx
Flying
Whenever you cycle or discard a card, target creature an opponent controls gets -2/-0 until end of turn.
4/4
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 All

Omnath, Locus of All {W}{U}{B/P}{R}{G}

Legendary Creature - Phyrexian Elemental
If you would lose unspent mana, that mana becomes black instead.
At the beginning of your precombat main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of its colors and put it into your hand. If you don't reveal it, put it into your hand.
4/4
Omnath, Locus of Creation

Omnath, Locus of Creation {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 (Alchemy)
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
Omnath, Locus of Rage

Omnath, Locus of Rage {3}{R}{R}{G}{G}

Legendary Creature - Elemental
Landfall — Whenever a land enters the battlefield under your control, create a 5/5 red and green Elemental creature token.
Whenever Omnath, Locus of Rage or another Elemental you control dies, Omnath deals 3 damage to any target.
5/5
Omnath, Locus of the Roil

Omnath, Locus of the Roil {1}{G}{U}{R}

Legendary Creature - Elemental
When Omnath, Locus of the Roil enters the battlefield, it deals damage to any target equal to the number of Elementals you control.
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on target Elemental you control. If you control eight or more lands, draw a card.
3/3
Omnibian

Omnibian {1}{G}{G}{U}

Creature - Frog
{T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn.
"This creature has hyperevolved chameleonic abilities. It no longer mimics its surroundings, instead forcing them to take on its form."
—Simic research notes
3/3
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
Omniscience

Omniscience {7}{U}{U}{U}

Enchantment
You may cast spells from your hand without paying their mana costs.
"In the arrogance of my youth, I believed I knew all there was to know. Now, my greatest wisdom is a humble awareness of all I have yet to learn."
—Teferi
Omo, Queen of Vesuva

Omo, Queen of Vesuva {2}{G/U}

Legendary Creature - Shapeshifter Noble
Whenever Omo, Queen of Vesuva enters the battlefield or attacks, put an everything counter on each of up to one target land and up to one target creature.
Each land with an everything counter on it is every land type in addition to its other types.
Each nonland creature with an everything counter on it is every creature type.
1/5
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
Once Upon a Time

Once Upon a Time {1}{G}

Instant
If this spell is the first spell you've cast this game, you may cast it without paying its mana cost.
Look at the top five cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Ondu Champion

Ondu Champion {2}{R}{R}

Creature - Minotaur Warrior Ally
Rally — Whenever Ondu Champion or another Ally enters the battlefield under your control, creatures you control gain trample until end of turn.
"Put a minotaur at the head of an army and suddenly all the soldiers act like they have horns."
—Gideon Jura
4/3