27726 cards found
Open the Way

Open the Way {X}{G}{G}

Sorcery
X can't be greater than the number of players in the game.
Reveal cards from the top of your library until you reveal X land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.
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
Ophidian

Ophidian {2}{U}

Creature - Snake
Whenever Ophidian attacks and isn't blocked, you may draw a card. If you do, Ophidian assigns no combat damage this turn.
1/3
Ophidian Eye

Ophidian Eye {2}{U}

Enchantment - Aura
Flash
Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.
  • Time Spiral
Ophiomancer

Ophiomancer {2}{B}

Creature - Human Shaman
At the beginning of each upkeep, if you control no Snakes, create a 1/1 black Snake creature token with deathtouch.
"There are dark, ancient arts that fascinate even me."
—Sorin Markov
2/2
Opportunist

Opportunist {2}{R}

Creature - Human Soldier
{T}: Opportunist deals 1 damage to target creature that was dealt damage this turn.
The third time the Oracle glanced suspiciously at him, Starke decided she had glanced twice too often.
2/2
  • Tempest
Opportunistic Dragon

Opportunistic Dragon {2}{R}{R}

Creature - Dragon
Flying
When Opportunistic Dragon enters the battlefield, choose target Human or artifact an opponent controls. For as long as Opportunistic Dragon remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.
4/3
Opportunity

Opportunity {4}{U}{U}

Instant
Target player draws four cards.
"Opportunity isn't something you wait for. It's something you create."
Opposition

Opposition {2}{U}{U}

Enchantment
Tap an untapped creature you control: Tap target artifact, creature, or land.
Exhausting a wizard can be exhausting work.
Opposition Agent

Opposition Agent {2}{B}

Creature - Human Rogue
Flash
You control your opponents while they're searching their libraries.
While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.
3/2
Oppression

Oppression {1}{B}{B}

Enchantment
Whenever a player casts a spell, that player discards a card.
THE EARTH BELOW IS YOUR CELL
THE AIR YOU BREATHE FORMS YOUR CHAINS
THE ONLY PATH TO FREEDOM LIES IN SUBMISSION
Oppressive Rays

Oppressive Rays {W}

Enchantment - Aura
Enchant creature
Enchanted creature can't attack or block unless its controller pays {3}.
Activated abilities of enchanted creature cost {3} more to activate.
Oppressive Will

Oppressive Will {2}{U}

Instant
Counter target spell unless its controller pays {1} for each card in your hand.
When Minamo was abandoned, its younger students found themselves thrust into a war beyond their skill with talents beyond their control.
  • Saviors of Kamigawa
Opt

Opt {U}

Instant
Scry 1.
Draw a card.
The crystal pulsed with the power of Teferi's Planeswalker spark. Had Jhoira given him a blessing or a curse?
Related card: Tome of Gadwick
Optimus Prime, Hero
Optimus Prime, Autobot Leader

Optimus Prime, Hero {3}{U}{R}{W}

Legendary Artifact Creature - Robot
More Than Meets the Eye {2}{U}{R}{W}
At the beginning of each end step, bolster 1.
When Optimus Prime dies, return it to the battlefield converted under its owner's control.
4/8
Card has other part: Optimus Prime, Autobot Leader
  • Transformers 13a 27a
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 en-Vec

Oracle en-Vec {1}{W}

Creature - Human Wizard
{T}: Target opponent chooses any number of creatures they control. During that player's next turn, the chosen creatures attack if able, and other creatures can't attack. At the beginning of that turn's end step, destroy each of the chosen creatures that didn't attack this turn. Activate only during your turn.
1/1
  • Tempest
Oracle of Bones

Oracle of Bones {2}{R}{R}

Creature - Minotaur Shaman
Haste
Tribute 2
When Oracle of Bones enters the battlefield, if tribute wasn't paid, you may cast an instant or sorcery spell from your hand without paying its mana cost.
3/1
  • Born of the Gods
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 of Mul Daya

Oracle of Mul Daya {3}{G}

Creature - Elf Shaman
You may play an additional land on each of your turns.
Play with the top card of your library revealed.
You may play lands from the top of your library.
2/2
Oracle of Nectars

Oracle of Nectars {2}{G/W}

Creature - Elf Cleric
{X}, {T}: You gain X life.
When elves find a fount of beauty, they protect it. Where there is beauty, there is hope.
2/2
Oracle of Tragedy

Oracle of Tragedy {1}{U}

Creature - Human Wizard
When Oracle of Tragedy enters the battlefield or dies, choose one —
• Draw a card, then discard a card.
• Shuffle up to four target cards with mana value 3 or greater from your graveyard into your library.
1/3
  • March of the Machine
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
Oracle's Attendants

Oracle's Attendants {3}{W}

Creature - Human Soldier
{T}: All damage that would be dealt to target creature this turn by a source of your choice is dealt to Oracle's Attendants instead.
They follow the prophecy to each new prophet, guarding the future from the present.
1/5
Oracle's Insight

Oracle's Insight {3}{U}

Enchantment - Aura
Enchant creature
Enchanted creature has "{T}: Scry 1, then draw a card."