2916 cards found
One with Death

One with Death {B}

Instant
You lose the game.
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
Only the Best

Only the Best {1}{W}

Sorcery - Adventure
Return target Booster Fun card from your graveyard to your hand.
Card has other part: Collectigull
  • 2019 Heroes of the Realm
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
Oozeavite

Oozeavite {4}{G}

Creature - Ooze
Oozeavite enters with each of a vigilance, reach, trample, and hexproof counter on it. These are also +1/+1 counters.
If Oozeavite would be dealt damage, instead create a 0/0 green Ooze creature token and move a counter from Oozeavite onto it. Then if Oozeavite has no counters on it, sacrifice it.
{3}{G}, {T}: Move any number of counters from other creatures you control onto Oozeavite.
Designed by players at MagicCon Amsterdam 2024.
0/0
  • Unknown Event
Opening Ceremony

Opening Ceremony {4}{R}{R}

Sorcery
Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack.
"Oooooh!"
—The crowd
"Aaaaaaaaah!"
—Also the crowd
  • Unfinity 118 404
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, 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
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 Ooze (Alchemy)

Oran-Rief Ooze (Alchemy) {2}{G}

Creature - Ooze
When Oran-Rief Ooze enters, 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
Orb of Origin

Orb of Origin {0}

Poly Artifact
{2}: Add one mana of any color.
Other noncreature artifacts are mono and continuous. (Each activated ability of mono artifacts costs an additional {T} to activate if its cost doesn't already include {T}. As long as a continuous artifact is tapped, it loses all abilities.)
  • Mystery Booster 2
Orcish Bowmasters (Alchemy)

Orcish Bowmasters (Alchemy) {1}{B}

Creature - Orc Archer
Flash
Whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target. Then amass Orcs 1.
1/1
Related card: Orcish Bowmasters
  • The Lord of the Rings: Tales of Middle-earth
Orcish Catapult

Orcish Catapult {X}{R}{R}

Instant
Randomly distribute X -0/-1 counters among a random number of random target creatures.
  • Astral Cards
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 Farmer

Orcish Farmer {1}{R}{R}

Creature - Orc
{T}: Target land becomes a Swamp until its controller's next untap step.
There is no natural disaster quite like orcish farming.
2/2
Orcish Paratroopers

Orcish Paratroopers {2}{R}

Creature - Orc Paratrooper
When Orcish Paratroopers enters, flip it from a height of at least one foot. Sacrifice Orcish Paratroopers unless it turns over completely at least once during the flip and lands face up.
IOU one parashoot
—Urk, mogg fanatic
4/4
  • Unhinged
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
Ordinary Pony

Ordinary Pony {2}{W}

Host Creature - Horse
When this creature enters, you may exile target non-Horse creature you control that wasn't put onto the battlefield with this ability this turn, then return it to the battlefield under its owner's control.
2/3
Ordruun Mentor

Ordruun Mentor {2}{R/W}

Creature - Minotaur Soldier
Mentor
Whenever you attack a player, target creature that's attacking that player gains first strike until end of turn.
The recruits had a lot to learn. Luckily, she had a lot to teach.
3/2
  • Ravnica: Clue Edition
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
Original Skullclamp

Original Skullclamp {1}

Artifact - Equipment
Equipped creature gets +1/+1.
Whenever equipped creature dies, draw two cards.
Equip {1}
  • Unknown Event
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
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.