31282 cards found
Oblivion Crown

Oblivion Crown {1}{B}

Enchantment - Aura
Flash
Enchant creature
Enchanted creature has "Discard a card: This creature gets +1/+1 until end of turn."
  • Future Sight
Oblivion Ring

Oblivion Ring {2}{W}

Enchantment
When Oblivion Ring enters, exile another target nonland permanent.
When Oblivion Ring leaves the battlefield, return the exiled card to the battlefield under its owner's control.
A circle of sugar and a word of forbiddance.
Oblivion Sower

Oblivion Sower {6}

Creature - Eldrazi
When you cast this spell, target opponent exiles the top four cards of their library, then you may put any number of land cards that player owns from exile onto the battlefield under your control.
The Eldrazi hunger without limit and consume without pause.
5/8
Oblivion Stone

Oblivion Stone {3}

Artifact
{4}, {T}: Put a fate counter on target permanent.
{5}, {T}, Sacrifice Oblivion Stone: Destroy each nonland permanent without a fate counter on it, then remove all fate counters from all permanents.
Oblivion Strike

Oblivion Strike {3}{B}

Sorcery
Devoid
Exile target creature.
It's bad enough to be torn to pieces. It's worse by far to be torn from the world itself.
Oblivion's Hunger

Oblivion's Hunger {1}{B}

Instant
Target creature you control gains indestructible until end of turn. Draw a card if that creature has a +1/+1 counter on it.
"Indulge the void. Become the void. Consume all you touch."
—Drana, the last bloodchief
  • Zendikar Rising
Oblivious Bookworm

Oblivious Bookworm {G}{U}

Creature - Human Wizard
At the beginning of your end step, you may draw a card. If you do, discard a card unless a permanent entered the battlefield face down under your control this turn or you turned a permanent face up this turn.
"Huh, the detector won't stop beeping. Must be on the fritz again."
2/3
  • Duskmourn: House of Horror 225 300
Oboro Breezecaller

Oboro Breezecaller {1}{U}

Creature - Moonfolk Wizard
Flying
{2}, Return a land you control to its owner's hand: Untap target land.
"I feel their unnatural influence in the weary, weeping land. Do they care nothing for the creatures who walk below their clouds?"
—Eight-and-a-Half-Tails
1/1
  • Saviors of Kamigawa
Oboro Envoy

Oboro Envoy {3}{U}

Creature - Moonfolk Wizard
Flying
{2}, Return a land you control to its owner's hand: Target creature gets -X/-0 until end of turn, where X is the number of cards in your hand.
1/3
  • Saviors of Kamigawa
Oboro, Palace in the Clouds

Oboro, Palace in the Clouds

Legendary Land
{T}: Add {U}.
{1}: Return Oboro, Palace in the Clouds to its owner's hand.
Here the soratami wove their endless plots—graceful, artful, and deceitful, while the unwitting world moved below.
  • Tales of Middle-earth Commander 371 401 401z
  • Saviors of Kamigawa
Obosh, the Preypiercer

Obosh, the Preypiercer {3}{B/R}{B/R}

Legendary Creature - Hellion Horror
Companion — Your starting deck contains only cards with odd mana values and land cards.
If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.
3/5
Obscura Ascendancy

Obscura Ascendancy {W}{U}{B}

Enchantment
Whenever you cast a spell, if its mana value is equal to 1 plus the number of soul counters on Obscura Ascendancy, put a soul counter on Obscura Ascendancy, then create a 2/2 white Spirit creature token with flying.
As long as there are five or more soul counters on Obscura Ascendancy, Spirits you control get +3/+3.
Obscura Charm

Obscura Charm {W}{U}{B}

Instant
Choose one —
• Return target multicolored permanent card with mana value 3 or less from your graveyard to the battlefield tapped.
• Counter target instant or sorcery spell.
• Destroy target creature or planeswalker with mana value 3 or less.
  • Streets of New Capenna 208 323 388
Obscura Confluence

Obscura Confluence {1}{W}{U}{B}

Instant
Choose three. You may choose the same mode more than once.
• Until end of turn, target creature loses all abilities and has base power and toughness 1/1.
• Target creature connives.
• Target player returns a creature card from their graveyard to their hand.
Obscura Initiate

Obscura Initiate {2}{U}

Creature - Bird Citizen
Flying
{1}{W/B}: Obscura Initiate gains lifelink until end of turn.
Obscura initiates are required to bring a gift of information. They are judged on both how useful it is and how hard it was to obtain.
2/2
  • Streets of New Capenna
Obscura Interceptor

Obscura Interceptor {1}{W}{U}{B}

Creature - Octopus Wizard
Flash
Lifelink
When Obscura Interceptor enters, it connives. When it connives this way, return up to one target spell to its owner's hand.
3/1
Obscura Polymorphist

Obscura Polymorphist {1}{W}{U}

Creature - Octopus Wizard
When Obscura Polymorphist enters the battlefield, exile target creature. Its controller seeks a creature card.
2/2
  • Alchemy: New Capenna
Obscura Storefront

Obscura Storefront

Land
When Obscura Storefront enters, sacrifice it. When you do, search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
In volatile times, a sense of certainty is in high demand.
Obscuring Aether

Obscuring Aether {G}

Enchantment
Face-down creature spells you cast cost {1} less to cast.
{1}{G}: Turn Obscuring Aether face down.
Obscuring Haze

Obscuring Haze {2}{G}

Instant
If you control a commander, you may cast this spell without paying its mana cost.
Prevent all damage that would be dealt this turn by creatures your opponents control.
Whether hunter or hunted, Kathril chooses when it is seen.
Observant Alseid

Observant Alseid {2}{W}

Enchantment Creature - Nymph
Bestow {4}{W}
Vigilance
Enchanted creature gets +2/+2 and has vigilance.
2/2
  • Theros
Obsessive Astronomer

Obsessive Astronomer {1}{R}

Creature - Human Wizard
If it's neither day nor night, it becomes day as Obsessive Astronomer enters.
Whenever day becomes night or night becomes day, discard up to two cards, then draw that many cards.
"Sleep? I can sleep when I'm dead!"
2/2
Obsessive Collector

Obsessive Collector {3}{U}

Creature - Spirit
Flying, ward {2}
Whenever Obsessive Collector deals combat damage to a player, seek a card with mana value equal to the number of cards in your hand.
4/4
  • Alchemy: Innistrad
Obsessive Search

Obsessive Search {U}

Instant
Draw a card.
Madness {U}
The question strained his sanity. The answer snapped it in half.
Related card: Tome of Gadwick
Obsessive Skinner

Obsessive Skinner {1}{G}

Creature - Human Rogue
When Obsessive Skinner enters, put a +1/+1 counter on target creature.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, put a +1/+1 counter on target creature.
1/1