30491 cards found
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.
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.
Onulet

Onulet {3}

Artifact Creature - Construct
When this creature dies, you gain 2 life.
An early inspiration for Urza, Tocasia's Onulets contained magical essences that could be cannibalized after they stopped functioning.
2/2
Related card: Golgothian Sylex
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 Goblet

Onyx Goblet {2}{B}

Artifact
{T}: Target player loses 1 life.
The goblet was a gift from the sphinx Gorael, who hoped humans and vedalken would eventually destroy each other to acquire it, leaving all of Esper to her own kind.
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
Oona's Blackguard

Oona's Blackguard {1}{B}

Creature - Faerie Rogue
Flying
Each other Rogue creature you control enters with an additional +1/+1 counter on it.
Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, that player discards a card.
1/1
Oona's Gatewarden

Oona's Gatewarden {U/B}

Creature - Faerie Soldier
Defender, flying
Wither
"So now you've seen Glen Elendra. Take a good look. It will be the last thing you'll ever see."
2/1
  • Shadowmoor
Oona's Grace

Oona's Grace {2}{U}

Instant
Target player draws a card.
Retrace
Oona grants her favored subjects a dream from her own guarded heart.
Oona's Prowler

Oona's Prowler {1}{B}

Creature - Faerie Rogue
Flying
Discard a card: This creature gets -2/-0 until end of turn. Any player may activate this ability.
Deep in Glen Elendra blossoms Oona, queen of the faeries, nourished by secrets and pollinated by stolen dreams.
3/1
  • Double Masters 2022 — 85 443
  • Lorwyn
Oona, Queen of the Fae

Oona, Queen of the Fae {3}{U/B}{U/B}{U/B}

Legendary Creature - Faerie Wizard
Flying
{X}{U/B}: Choose a color. Target opponent exiles the top X cards of their library. For each card of the chosen color exiled this way, create a 1/1 blue and black Faerie Rogue creature token with flying.
5/5
Ooze Flux

Ooze Flux {3}{G}

Enchantment
{1}{G}, Remove one or more +1/+1 counters from among creatures you control: Create an X/X green Ooze creature token, where X is the number of +1/+1 counters removed this way.
  • Gatecrash
Ooze Garden

Ooze Garden {1}{G}

Enchantment
{1}{G}, Sacrifice a non-Ooze creature: Create an X/X green Ooze creature token, where X is the sacrificed creature's power. Activate only as a sorcery.
Jund has little necromancy. Instead, the flesh of its dead gives rise to algal fiends.
  • Shards of Alara
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
Opal Archangel

Opal Archangel {4}{W}

Enchantment
When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 5/5 Angel creature with flying and vigilance.
  • Urza's Saga
Opal Avenger

Opal Avenger {2}{W}

Enchantment
When you have 10 or less life, if this permanent is an enchantment, it becomes a 3/5 Soldier creature.
As the sun grew cold in the realm, the statue grew warm.
  • Urza's Legacy
Opal Caryatid

Opal Caryatid {W}

Enchantment
When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Soldier creature.
  • Urza's Saga
Opal Champion

Opal Champion {2}{W}

Enchantment
When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 3/3 Knight creature with first strike.
  • Urza's Legacy
Opal Gargoyle

Opal Gargoyle {1}{W}

Enchantment
When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Gargoyle creature with flying.
  • Urza's Saga
Opal Guardian

Opal Guardian {W}{W}{W}

Enchantment
When an opponent casts a creature spell, if this permanent is an enchantment, this enchantment becomes a 3/4 Gargoyle creature with flying and protection from red.
It was a moment in time, cast in stone—a moment whose time had come again.
  • Time Spiral