2502 cards found
Omen Hawker

Omen Hawker {U}

Creature - Octopus Advisor
{T}: Add {C}{U}. Spend this mana only to activate abilities.
After years of fabricating visions for naive customers of the Obscura, Stafano was flummoxed by the nightmarish scenes that played out unbidden in his mind's eye.
1/1
  • March of the Machine
Omen of the Dead

Omen of the Dead {B}

Enchantment
Flash
When Omen of the Dead enters, return target creature card from your graveyard to your hand.
{2}{B}, Sacrifice Omen of the Dead: Scry 2.
"My time will come, when life's frantic striving will fade into the boundless quiet of death."
  • Theros Beyond Death
On Thin Ice

On Thin Ice {W}

Snow Enchantment - Aura
Enchant snow land you control
When On Thin Ice enters, exile target creature an opponent controls until On Thin Ice leaves the battlefield.
He cursed the wind. He cursed the cold. But by stepping on the ice, he cursed himself.
  • Modern Horizons
One with Death

One with Death {B}

Instant
You lose the game.
One with Nature

One with Nature {G}

Enchantment - Aura
Enchant creature
Whenever enchanted creature deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
One with Nothing

One with Nothing {B}

Instant
Discard your hand.
When nothing remains, everything is equally possible.
Onslaught

Onslaught {R}

Enchantment
Whenever you cast a creature spell, tap target creature.
The last thing to go through the mogg's mind was its teeth.
Opal Caryatid

Opal Caryatid {W}

Enchantment
When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature.
  • Urza's Saga
Open the Gates

Open the Gates {G}

Sorcery
Search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle.
"If you don't have a destination in mind, the route is all that matters."
—Tamina, district guide
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.
Teferi had once wielded the power—-and hubris—of a god. To fix his mistakes, he would risk everything.
Related card: Tome of Gadwick
Optimistic Scavenger

Optimistic Scavenger {W}

Creature - Human Scout
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a +1/+1 counter on target creature.
"A void rod? Perfect! Now I'll be able to get the glitch reader working again."
1/1
  • Duskmourn: House of Horror — 21 288
Orazca Puzzle-Door

Orazca Puzzle-Door {U}

Artifact
{1}, {T}, Sacrifice Orazca Puzzle-Door: Look at the top two cards of your library. Put one of those cards into your hand and the other into your graveyard.
Between Quintorius's archaeological expertise and Huatli's knowledge of ancient glyphs, the "impossible" lock finally yielded, and the door to the underground world rumbled open.
  • The Lost Caverns of Ixalan
Orcish Captain

Orcish Captain {R}

Creature - Orc Warrior
{1}: Flip a coin. If you win the flip, target Orc creature gets +2/+0 until end of turn. If you lose the flip, it gets -0/-2 until end of turn.
There's a chance to win every battle.
1/1
Orcish Conscripts

Orcish Conscripts {R}

Creature - Orc
Orcish Conscripts can't attack unless at least two other creatures attack.
Orcish Conscripts can't block unless at least two other creatures block.
2/2
Orcish Lumberjack

Orcish Lumberjack {R}

Creature - Orc
{T}, Sacrifice a Forest: Add three mana in any combination of {R} and/or {G}.
"Wood is wasted in the dirt."
—Orcish proverb
1/1
Orcish Spy

Orcish Spy {R}

Creature - Orc Rogue
{T}: Look at the top three cards of target player's library.
"You idiot! Never let the spies mingle with the orcish regulars after completing a mission. Now we'll never get them to fight!"
—General Khurzog
1/1
Order of the Stars

Order of the Stars {W}

Creature - Human Cleric
Defender
As Order of the Stars enters, choose a color.
Order of the Stars has protection from the chosen color.
As stoic as the marble halls, as unblinking as the stars upon their shields.
0/1
  • Guildpact
Organ Harvest

Organ Harvest {B}

Sorcery
Your team may sacrifice any number of creatures. For each creature sacrificed this way, you add {B}{B}.
"Lucy, you've got some spleenin' to do."
  • Unglued
Orim's Chant

Orim's Chant {W}

Instant
Kicker {W}
Target player can't cast spells this turn. If this spell was kicked, creatures can't attack this turn.
Orim's Touch

Orim's Touch {W}

Instant
Kicker {1}
Prevent the next 2 damage that would be dealt to any target this turn. If this spell was kicked, prevent the next 4 damage that would be dealt to that permanent or player this turn instead.
  • Invasion
Ornamental Courage

Ornamental Courage {G}

Instant
Untap target creature. It gets +1/+3 until end of turn.
Inspired by the thorns and brambles of the untamed wilds, elvish armor is both beautiful and formidable.
Orochi Leafcaller

Orochi Leafcaller {G}

Creature - Snake Shaman
{G}: Add one mana of any color.
"Only orochi hatched from eggs 'touched by the kami' may become shamans. These days, there are fewer and fewer new shamans being born."
1/1
  • Champions of Kamigawa
Ostracize

Ostracize {B}

Sorcery
Target opponent reveals their hand. You choose a creature card from it. That player discards that card.
"You won't be needing this."
Oteclan Landmark
Oteclan Levitator

Oteclan Landmark {W}

Artifact
When Oteclan Landmark enters, scry 2.
Craft with artifact {2}{W}
Card has other part: Oteclan Levitator
  • The Lost Caverns of Ixalan