2129 cards found
Omenpath Instability

Omenpath Instability

Phenomenon
When you encounter this phenomenon, each player creates an Entropy enchantment token with "Sacrifice this enchantment: Chaos ensues. Activate only as a sorcery" and an Omenpath enchantment token with "Sacrifice this enchantment: Planeswalk. Activate only as a sorcery." (Then Planeswalk away from this phenomenon.)
  • Unknown Event
Omenpath to Naya

Omenpath to Naya

Land - Omenpath
Vanishing 4 (This land enters the battlefield with four time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
{T}: Add {R}, {G}, or {W}.
  • Mystery Booster 2
Ominous Cemetery

Ominous Cemetery

Land
{T}: Add {C}.
{5}, {T}, Exile Ominous Cemetery: 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
Onakke Catacomb

Onakke Catacomb

Plane - Shandalar
All creatures are black and have deathtouch.
Whenever chaos ensues, creatures you control get +1/+0 and gain first strike until end of turn.
Ondu Skyruins
Ondu Inversion

Ondu Skyruins

Land
Ondu Skyruins enters tapped.
{T}: Add {W}.
"It always seems so quiet in the aftermath of wrenching violence."
—Nys Dal, Sea Gate trapfinder
Card has other part: Ondu Inversion
One of the Pack
Solitary Hunter

One of the Pack

Creature - Werewolf
(Color indicator: One of the Pack is green)
At the beginning of each upkeep, if a player cast two or more spells last turn, transform One of the Pack.
When the howl beckons, he cannot resist the urge to join the others.
5/6
Card has other part: Solitary Hunter
  • Shadows over Innistrad
Oni of Wild Places Avatar

Oni of Wild Places Avatar

Vanguard
Creatures you control have haste.
At the beginning of your upkeep, return a creature you control to its owner's hand.
Hand size bonus: +0
Life bonus: -2
  • Magic Online Avatars
Only Blood Ends Your Nightmares

Only Blood Ends Your Nightmares

Scheme
When you set this scheme in motion, each opponent sacrifices a creature of their choice. Then each opponent who didn't sacrifice a creature discards two cards.
"But nothing will end your regret."
  • Archenemy Schemes
Only I Know What Awaits

Only I Know What Awaits

Scheme
When you set this scheme in motion, for each card type among permanents your opponents control, you may put a permanent card of that type from your hand onto the battlefield.
"I will multiply your fears until your body melts in on itself and you drown in the tears of your own terrified mind."
  • Duskmourn: House of Horror Commander
Ood Sphere

Ood Sphere

Plane - Horsehead Nebula
Song of the Ood — Noncreature spells have convoke.
Red-Eye — Whenever chaos ensues, for each opponent, goad up to one target creature that opponent controls. Until your next turn, those creatures can't become tapped unless they're being declared as attackers.
  • Doctor Who
Opal Palace

Opal Palace

Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.
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
Opulent Palace

Opulent Palace

Land
Opulent Palace enters 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

Oracle

Vanguard
{0}: Untap target attacking creature you control and remove it from combat.
Known simply by her title, Oracle uses her gift of prophecy to aid her people. She believes Gerrard to be the Korvecdal, the one who will unite the people of Rath against Volrath's tyranny. Her only doubt is whether she will be strong enough to guide him to his destiny.
Hand size bonus: +1
Life bonus: +9
  • Vanguard Series
Oran-Rief, the Vastwood

Oran-Rief, the Vastwood

Land
Oran-Rief, the Vastwood enters tapped.
{T}: Add {G}.
{T}: Put a +1/+1 counter on each green creature that entered this turn.
Orcish Squatters Avatar

Orcish Squatters Avatar

Vanguard
At the beginning of your first main phase, add {C} for each land target opponent controls.
Hand size bonus: -1
Life bonus: -1
  • Magic Online Avatars
Order of the Alabaster Host
Order of the Mirror

Order of the Alabaster Host

Creature - Phyrexian Knight
(Color indicator: Order of the Alabaster Host is white and blue)
Whenever Order of the Alabaster Host becomes blocked by a creature, that creature gets -1/-1 until end of turn.
Soon she understood that it was not the vision that had been twisted, but her own mind.
3/3
Card has other part: Order of the Mirror
  • March of the Machine
Orderly Plaza
Suppression Ray

Orderly Plaza

Land
Orderly Plaza enters tapped.
{T}: Add {W} or {U}.
"Chaos fuels the flames of violence. Only through order can peace be assured."
—Dovin Baan
Card has other part: Suppression Ray
  • Modern Horizons 3
Orim

Orim

Vanguard
Creatures you control have reach.
Trained in the Samite arts, Orim serves as the healer aboard the Weatherlight. She is quick with languages and was educated at the same Argivian university as Hanna. A student by nature, Orim keeps a diary of all her new discoveries—both physical and spiritual—during her travels.
Hand size bonus: +0
Life bonus: +12
  • Vanguard Series
Ormendahl, Profane Prince
Westvale Abbey

Ormendahl, Profane Prince

Legendary Creature - Demon
(Color indicator: Ormendahl, Profane Prince is black)
Flying, lifelink, indestructible, haste
With Griselbrand gone, the Skirsdag eagerly awaited another demon to claim their devotion. Ormendahl did not make them wait long.
9/7
Card has other part: Westvale Abbey
Ormendahl, the Corrupter
Jerren, Corrupted Bishop

Ormendahl, the Corrupter

Legendary Creature - Demon
(Color indicator: Ormendahl, the Corrupter is black)
Flying, trample, lifelink
Sacrifice another creature: Draw a card.
"Ah, Jerren. You've been such a faithful, useful insect."
6/6
Card has other part: Jerren, Corrupted Bishop
Orochi Colony

Orochi Colony

Plane - Kamigawa
Whenever a creature you control deals combat damage to a player, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever chaos ensues, target creature can't be blocked this turn.
Orzhov Basilica

Orzhov Basilica

Land
Orzhov Basilica enters tapped.
When Orzhov Basilica enters, return a land you control to its owner's hand.
{T}: Add {W}{B}.
Orzhov Guildgate

Orzhov Guildgate

Land - Gate
This land enters tapped.
{T}: Add {W} or {B}.
Enter to find wealth, security, and eternal life . . . for just a small price up front.