9545 cards found
Olson's Sky Brigade

Olson's Sky Brigade {3}{R}

Creature - Ferret Pirate
Haste (This creature can attack and {T} as soon as it comes under your control.)
Olson's Sky Brigade has flying as long as you control another attacking Pirate.
“Enemy spotted! All hands on deck!”
“Admiral, I believe that's a cloud.”
3/3
  • Adventurers of Onora
Olten Skywhale

Olten Skywhale {3}{U}{U}

Creature - Whale
Flash
Flying
“Is this more than you've bargained for yet?”
“Yep. It finally is.”
4/3
  • Love Song
Olten Tarrasque

Olten Tarrasque {5}{G}{G}

Creature - Dinosaur
Trample
Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)
Cycling {2} ({2}, Discard this card: Draw a card.)
History shows again and again how nature points out the folly of men.
6/8
Olten Vipermoa

Olten Vipermoa {1}{G}{W}

Creature - Bird Beast
Flash
When Olten Vipermoa enters, you may return another creature you control to its owner's hand. If you do, put two +1/+1 counters on Olten Vipermoa.
If you knew what they sang for, you'd never sing along.
3/2
  • Animus Vox
Oltenen Paradise-Seeker

Oltenen Paradise-Seeker {1}{W}

Creature - Elemental Wizard
Rhapsody {5}{W}{W} (Pay {5}{W}{W} to cast this as a 4/4, or as a sorcery to make it become a 4/4.)
Whenever Oltenen Paradise-Seeker attacks, up to one target creature's base power and toughness each become equal to Oltenen Paradise-Seeker's power and toughness until end of turn.
“The sun must set to rise.”
2/1
  • Animus Vox
Oltenen Terror

Oltenen Terror {4}{G}

Creature - Insect
Reach
When Oltenen Terror enters, crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)
{1}{G}, Sacrifice an artifact or creature: Tap Oltenen Terror. It gains indestructible until end of turn.
Its pulse quickens after every little sting.
5/5
  • Animus Vox
Omen Serpent

Omen Serpent {4}{U}{U}

Creature - Serpent
{3}{U}, Exile a card from your graveyard: Omen Serpent can't be blocked this turn.
“The runes on its scales... I think they're a map!”
—Lelin, the Wise
5/6
  • Arkadai
Omen of Nefarox

Omen of Nefarox {2}{B}

Instant
Target creature gets -5/-5 until end of turn. Scry 1.
“The demon must be cowering in his necropolis, sending these at me rather than facing me himself. Of him I will make my finest thrall yet.”
—Kaalia of the Vast
  • Alara
Omendiver

Omendiver {2}{U}

Creature - Horse Fish
Colossal 3—{5}{U} (You may cast this for its colossal cost to have it enter with three +1/+1 counters; or pay {5}{U} as a sorcery: Put three +1/+1 counters on it if it has none.)
When Omendiver's colossal ability puts one or more counters on it, scry 3.
It swims in the currents of tomorrow.
3/2
  • Theros Triumphant
Ominous Helmet

Ominous Helmet {3}

Artifact - Equipment
Equipped creature gets +0/+3 and has menace. (It can't be blocked except by two or more creatures.)
Equip {1}
  • Elmare: Into the Abyss
Ominous Lightning

Ominous Lightning {1}{R}

Sorcery
Ominous Lightning deals 3 damage to target creature. Scry 2.
Hellclouds from Grixis lack the structured elegance of their cloven Esperite counterparts, but they are just as stunning to behold.
  • Alara
Ominous Palace

Ominous Palace

Land
{T}: Add {U} or {B}. You lose 1 life unless you have less life than an opponent.
Naogui the Lotus-Charmed guards the most depraved secrets of the world with naught but his sweet, welcoming voice.
  • Panxiou
Ominous Presence

Ominous Presence {4}{B}

Creature - Spirit
When Ominous Presence enters, search your library for a Curse card, reveal it, then shuffle. If it has mana value 4 or less, you may put it onto the battlefield. Otherwise, put it into your hand.
Ominous Presence gets +1/+1 for each Curse attached to your opponents.
1/1
  • Karina's Explorations
Ominous Quag

Ominous Quag

Land
Ominous Quag enters tapped.
{T}: Add {W} or {B}.
{2}{W}{B}, {T}, Sacrifice Ominous Quag: Draw a card.
In the stillness of the wastes, Athreos's influence extends beyond the afterlife.
  • Theros Triumphant
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} ({2}, Discard this card: Draw a card.)
Always fear the open waters. If even the guppies are already gone, it's too late.
  • Elmare: Into the Abyss
Ominous Wind

Ominous Wind {1}{B}

Instant
Target creature gets -2/-2 until end of turn.
{3}{B}{B}, Exile Ominous Wind from your graveyard: Each creature gets -2/-2 until end of turn. Activate only as a sorcery.
Karina set up the camp. Amber worked on a fire. Luna wandered off to investigate that strange sound in the trees.
  • Monsters of Chikyu
On Display

On Display {1}{U}

Enchantment - Aura
Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
“If you think Olten's rock samples are impressive, you ain't seen nothing yet.”
—Henry Ivin, Museum Tour Guide
  • Love Song
On Eli's Orders

On Eli's Orders {2}{B}

Sorcery
Post a bounty on target creature you don't control, then each opponent sacrifices a creature. (Put a bounty counter on that creature. It has “When this creature dies, each opponent draws a card” as long as it has a bounty counter on it.)
  • Over the Horizon
On Marvelous Wings

On Marvelous Wings {2}{U}

Enchantment - Saga
I, II — Put your choice of a flying or hexproof counter on target creature you control.
III — Creatures you control with counters on them can't be blocked this turn unless defending player pays {3} and spells that target those creatures cost an additional {3} to cast until your next turn.
​
  • Kahembo: Olde Dawn
On Repeat

On Repeat {1}{W}

Instant
Exile target creature or enchantment you control, then return that card to the battlefield under your control.
You may cast On Repeat from your graveyard any time you could cast a sorcery by discarding a land card in addition to paying its other costs.
Does it almost feel like you've been here before?
  • Animus Vox
On the Case

On the Case {G}{U}

Instant
Proliferate (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)
Scry 2, then draw a card.
“Of course! We just had to track our steps and the truth came to light — Vaughn was never dead, just in hiding!”
—Eldon and Eleanor, Sleuths
  • The Stage Presents: The Neverending Act
Once More with Heart

Once More with Heart {W}

Sorcery
Return target creature card with mana value 3 or less from your graveyard to the battlefield. If its mana value is less than 3, you gain life equal to the difference.
“Faltered offstage? Pssh, happens to everyone. Now get up, Paul — after all, no one can play this part quite like you.”
—Abey, Director of Hope
  • The Stage Presents: The Neverending Act
Once More with Style

Once More with Style {1}{W}

Instant
Exile target creature you control, then return that card to the battlefield under its owner's control. Create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)
  • Surging Tide
One Last Dance

One Last Dance {2}{R}

Sorcery
Gain control of target creature until end of turn and untap it. Until end of turn, it gains haste and “Whenever this creature attacks, it deals 2 damage to itself.”
“Hold on tight, here comes the dip.”
  • Nangjiao In Bloom
One Last Mission

One Last Mission {1}{W}

Sorcery
Choose one or both —
• Put a +1/+1 counter on each of up to two target creatures.
• Put a +1/+1 counter on up to one target Elemental and up to one target Soldier.
This one is for the champions.
  • Animus Vox