20472 cards found
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.
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
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, Autobot Leader
Optimus Prime, Hero

Optimus Prime, Autobot Leader

Legendary Artifact - Vehicle
(Color indicator: Optimus Prime, Autobot Leader is white, blue, and red)
Living metal
Trample
Whenever you attack, bolster 2. The chosen creature gains trample until end of turn. When that creature deals combat damage to a player this turn, convert Optimus Prime.
6/8
Card has other part: Optimus Prime, Hero
  • Transformers 13b 27b
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
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 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 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 Insight

Oracle's Insight {3}{U}

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

Orah, Skyclave Hierophant {2}{W}{B}

Legendary Creature - Kor Cleric
Lifelink
Whenever Orah, Skyclave Hierophant or another Cleric you control dies, return target Cleric card with lesser mana value from your graveyard to the battlefield.
"The Skyclaves are our inheritance."
3/3
Oran-Rief Hydra

Oran-Rief Hydra {4}{G}{G}

Creature - Hydra
Trample
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Oran-Rief Hydra. If that land is a Forest, put two +1/+1 counters on Oran-Rief Hydra instead.
5/5
Oran-Rief Invoker

Oran-Rief Invoker {1}{G}

Creature - Human Shaman
{8}: Oran-Rief Invoker gets +5/+5 and gains trample until end of turn.
"The world was not hostile to us—we were beneath its notice, and presented no danger."
—The Invokers' Tales
2/2
Oran-Rief Ooze

Oran-Rief Ooze {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 attacking creature with a +1/+1 counter on it.
2/2
Related card: Oran-Rief Ooze (Alchemy)
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
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.
Orator of Ojutai

Orator of Ojutai {1}{W}

Creature - Bird Monk
As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Defender, flying
When Orator of Ojutai enters the battlefield, if you revealed a Dragon card or controlled a Dragon as you cast this spell, draw a card.
0/4
Orazca Frillback

Orazca Frillback {2}{G}

Creature - Dinosaur
The frillbacks of Orazca soak up the sun on their tall spinal fins. They look slow and sleepy—until they catch the scent of prey.
4/2