33835 cards found
Omega, Heartless Evolution

Omega, Heartless Evolution {5}{G}{U}

Legendary Artifact Creature - Robot
Wave Cannon — When Omega enters, for each opponent, tap up to one target nonland permanent that opponent controls. Put X stun counters on each of those permanents and you gain X life, where X is the number of nonbasic lands you control.
8/8
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
Omenport Vigilante

Omenport Vigilante {1}{W}

Creature - Human Mercenary
This creature has double strike as long as you've committed a crime this turn.
Freestriders took to patrolling near the Omenpaths, protecting new arrivals from the robbers and charlatans prowling for easy marks.
2/2
  • Outlaws of Thunder Junction
Ominous Cemetery

Ominous Cemetery

Land
{T}: Add {C}.
{5}, {T}, Exile this land: 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 Roost

Ominous Roost {2}{U}

Enchantment
When this enchantment enters and whenever you cast a spell from your graveyard, create a 1/1 blue Bird creature token with flying and "This token can block only creatures with flying."
"One raven is a bad omen. Two are a curse. I don't know what this is, but it can't be good."
—Verna, priest of Sigarda
Ominous Seas

Ominous Seas {1}{U}

Enchantment
Whenever you draw a card, put a foreshadow counter on this enchantment.
Remove eight foreshadow counters from this enchantment: 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.
The sphinxes began to speak only after the Second Sun aligned. They whispered dire warnings, though no one listened.
4/4
On Serra's Wings

On Serra's Wings {3}{W}

Legendary Enchantment - Aura
Enchant creature
Enchanted creature is legendary, gets +1/+1, and has flying, vigilance, and lifelink.
"The spirit of Serra raised Brindri high and commanded her to keep the balance."
—Song of All, canto 524
Related cards: Giant Secrets Stormkeld Curator
Once and Future

Once and Future {3}{G}

Instant
Return target card from your graveyard to your hand. Put up to one other target card from your graveyard on top of your library. Exile Once and Future.
Adamant — If at least three green mana was spent to cast this spell, instead return those cards to your hand and exile Once and Future.
  • Throne of Eldraine
Ondu Knotmaster

Ondu Knotmaster {2}{W}{B}

Creature - Kor Rogue
Lifelink
Whenever another modified creature you control dies, put two +1/+1 counters on this creature.
2/2
Card has other part: Throw a Line
  • Modern Horizons 3
Ondu Rising

Ondu Rising {1}{W}

Sorcery
Whenever a creature attacks this turn, it gains lifelink until end of turn.
Awaken 4—{4}{W}
  • Battle for Zendikar
One Dozen Eyes

One Dozen Eyes {5}{G}

Sorcery
Choose one —
• Create a 5/5 green Beast creature token.
• Create five 1/1 green Insect creature tokens.
Entwine {G}{G}{G}
One Thousand Lashes

One Thousand Lashes {2}{W}{B}

Enchantment - Aura
Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
At the beginning of the upkeep of enchanted creature's controller, that player loses 1 life.
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 the Stars

One with the Stars {3}{U}

Enchantment - Aura
Enchant creature or enchantment
Enchanted permanent is an enchantment and loses all other card types.
"Take your place among the stars."
—Kruphix, god of horizons
  • Theros Beyond Death
Oneirophage

Oneirophage {3}{U}

Creature - Squid Illusion
Flying
Whenever you draw a card, put a +1/+1 counter on this creature.
It manifests at wizard academies to siphon inspiration from young prodigies.
1/2
Ongoing Investigation

Ongoing Investigation {1}{U}

Enchantment
Whenever one or more creatures you control deal combat damage to a player, investigate.
{1}{G}, Exile a creature card from your graveyard: Investigate. You gain 2 life.
Oni Possession

Oni Possession {2}{B}

Enchantment - Aura
Enchant creature
At the beginning of your upkeep, sacrifice a creature.
Enchanted creature gets +3/+3 and has trample.
Enchanted creature is a Demon Spirit.
Oni of Wild Places

Oni of Wild Places {5}{R}

Creature - Demon Spirit
Haste
At the beginning of your upkeep, return a red creature you control to its owner's hand.
The oni leapt easily from peak to peak, toying with its victims, its voice a purr from the rumbling depths of nightmare.
6/5
Oni-Cult Anvil

Oni-Cult Anvil {B}{R}

Artifact
Whenever one or more artifacts you control leave the battlefield during your turn, create a 1/1 colorless Construct artifact creature token. This ability triggers only once each turn.
{T}, Sacrifice an artifact: This artifact deals 1 damage to each opponent. You gain 1 life.
Onward

Onward {2}{R}

Instant
Target creature gets +X/+0 until end of turn, where X is its power.
Card has other part: Victory
Onyx Mage

Onyx Mage {1}{B}

Creature - Human Wizard
{1}{B}: Target creature you control gains deathtouch until end of turn.
"We wield death and darkness, powers that make lesser mages tremble in fear."
—Onyx creed
2/1
  • Magic 2012
Onyx Talisman

Onyx Talisman {2}

Artifact
Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.
  • Ice Age
Ooze Patrol

Ooze Patrol {3}{G}

Creature - Ooze
When this creature enters, mill two cards, then put a +1/+1 counter on this creature for each artifact and/or creature card in your graveyard.
As it digested the demonic roadster, it too learned the thrill of speed.
2/2
  • Aetherdrift
Opal Acrolith

Opal Acrolith {2}{W}

Enchantment
Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/4 Soldier creature.
{0}: This permanent becomes an enchantment.
  • Urza's Saga