12012 cards found
Omen of Fire

Omen of Fire {3}{R}{R}

Instant
Return all Islands to their owners' hands. Each player sacrifices a Plains or a white permanent for each white permanent they control.
"Let Balduvia burn to warm Kjeldor's hearth!"
—General Varchild
  • Alliances
Omenpath Journey

Omenpath Journey {3}{G}

Enchantment
When Omenpath Journey enters the battlefield, search your library for up to five land cards that have different names, exile them, then shuffle.
At the beginning of your end step, choose a card at random exiled with Omenpath Journey and put it onto the battlefield tapped.
Ominous Lockbox

Ominous Lockbox {1}{U}

Artifact - Clue
As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20.
When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy.
{2}, Sacrifice Ominous Lockbox: Draw a card.
  • Alchemy: Murders at Karlov Manor
Ominous Traveler

Ominous Traveler {2}

Creature - Human
When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand."
1/1
Related cards: Archghoul of Thraben Bladestitched Skaab Champion of the Perished Dominating Vampire Falkenrath Pit Fighter Headless Rider Heron-Blessed Geist Howlpack Piper Patrician Geist Shipwreck Sifters Steelclad Spirit Stromkirk Bloodthief Tovolar, Dire Overlord Tovolar, the Midnight Scourge Vampire Socialite Wedding Crasher Wildsong Howler Wolfkin Outcast
  • Alchemy: Innistrad
Omnath, Locus of All

Omnath, Locus of All {W}{U}{B/P}{R}{G}

Legendary Creature - Phyrexian Elemental
If you would lose unspent mana, that mana becomes black instead.
At the beginning of your precombat main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of its colors and put it into your hand. If you don't reveal it, put it into your hand.
4/4
Omnath, Locus of Creation

Omnath, Locus of Creation {R}{G}{W}{U}

Legendary Creature - Elemental
When Omnath, Locus of Creation enters the battlefield, draw a card.
Landfall — Whenever a land enters the battlefield under your control, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.
4/4
Related card: Omnath, Locus of Creation (Alchemy)
Omnath, Locus of Creation (Alchemy)

Omnath, Locus of Creation (Alchemy) {1}{R}{G}{W}{U}

Legendary Creature - Elemental
When Omnath, Locus of Creation enters the battlefield, draw a card.
Landfall — Whenever a land enters the battlefield under your control, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.
4/4
Related card: Omnath, Locus of Creation
  • Zendikar Rising
Omnath, Locus of Mana

Omnath, Locus of Mana {2}{G}

Legendary Creature - Elemental
You don't lose unspent green mana as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each unspent green mana you have.
It gathers against the coming storm.
1/1
Omnath, Locus of Rage

Omnath, Locus of Rage {3}{R}{R}{G}{G}

Legendary Creature - Elemental
Landfall — Whenever a land enters the battlefield under your control, create a 5/5 red and green Elemental creature token.
Whenever Omnath, Locus of Rage or another Elemental you control dies, Omnath deals 3 damage to any target.
5/5
Omnath, Locus of the Roil

Omnath, Locus of the Roil {1}{G}{U}{R}

Legendary Creature - Elemental
When Omnath, Locus of the Roil enters the battlefield, it deals damage to any target equal to the number of Elementals you control.
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on target Elemental you control. If you control eight or more lands, draw a card.
3/3
  • Core Set 2020 Promos 216p 216s
  • Core Set 2020
Omnibian

Omnibian {1}{G}{G}{U}

Creature - Frog
{T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn.
"This creature has hyperevolved chameleonic abilities. It no longer mimics its surroundings, instead forcing them to take on its form."
—Simic research notes
3/3
Omniclown Colossus

Omniclown Colossus {8}{R}{R}

Artifact Creature - Clown Robot
Affinity for Clowns (This spell costs {1} less to cast for each Clown you control.)
Trample
7/7
Card has other part: Pie-roclasm
Omniscience

Omniscience {7}{U}{U}{U}

Enchantment
You may cast spells from your hand without paying their mana costs.
"The things I once imagined would be my greatest achievements were only the first steps toward a future I can only begin to fathom."
—Jace Beleren
Omnispell Adept

Omnispell Adept {4}{U}

Creature - Human Wizard
{2}{U}, {T}: You may cast an instant or sorcery spell from your hand without paying its mana cost.
She memorized every arcane text in the Ismeri Library by the time she was sixteen. Now she quizzes sphinxes in her spare time.
3/4
  • Guilds of Ravnica
On Thin Ice

On Thin Ice {W}

Snow Enchantment - Aura
Enchant snow land you control
When On Thin Ice enters the battlefield, exile target creature an opponent controls until On Thin Ice leaves the battlefield.
He cursed the wind. He cursed the cold. But by stepping on the ice, he cursed himself.
  • Modern Horizons
On the Trail

On the Trail {1}{G}

Enchantment
Whenever you draw your second card each turn, you may put a land card from your hand onto the battlefield tapped.
Where the victim's journey ends, the investigator's begins.
  • Murders at Karlov Manor Commander 39 349
Onakke Oathkeeper

Onakke Oathkeeper {1}{W}

Creature - Ogre Spirit
Creatures can't attack planeswalkers you control unless their controller pays {1} for each creature they control that's attacking a planeswalker you control.
{4}{W}{W}, Exile Onakke Oathkeeper from your graveyard: Return target planeswalker card from your graveyard to the battlefield.
0/4
  • Commander Masters 722 755
Once More with Feeling

Once More with Feeling {W}{W}{W}{W}

Sorcery
Exile all permanents and all cards from all graveyards. Each player shuffles their hand into their library, then draws seven cards. Each player's life total becomes 10. Exile Once More with Feeling.
DCI ruling — A deck can have only one card named Once More with Feeling.
If yo . . . ted.
  • Unglued
Once Upon a Time

Once Upon a Time {1}{G}

Instant
If this spell is the first spell you've cast this game, you may cast it without paying its mana cost.
Look at the top five cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Ondu Inversion
Ondu Skyruins

Ondu Inversion {6}{W}{W}

Sorcery
Destroy all nonland permanents.
"At first rumble you'd best hold on tight and pray to any gods you still hold dear."
—Nys Dal, Sea Gate trapfinder
Card has other part: Ondu Skyruins
Ondu Skyruins
Ondu Inversion

Ondu Skyruins

Land
Ondu Skyruins enters the battlefield 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
Ondu Spiritdancer

Ondu Spiritdancer {4}{W}

Creature - Kor Cleric
Whenever an enchantment enters the battlefield under your control, you may create a token that's a copy of it. Do this only once each turn.
"We travel to know the land—its sacred spirit, its perils and blessings."
3/3
  • Commander Masters 723 756
One Last Job

One Last Job {2}{W}

Sorcery
Spree
+ {2} — Return target creature card from your graveyard to the battlefield.
+ {1} — Return target Mount or Vehicle card from your graveyard to the battlefield.
+ {1} — Return target Aura or Equipment card from your graveyard to the battlefield attached to a creature you control.
  • Outlaws of Thunder Junction 22 315
One Ring to Rule Them All

One Ring to Rule Them All {2}{B}{B}

Enchantment - Saga
I — The Ring tempts you, then each player mills cards equal to your Ring-bearer's power.
II — Destroy all nonlegendary creatures.
III — Each opponent loses 1 life for each creature card in that player's graveyard.
Related cards: The Ring The Ring Tempts You
One with Death

One with Death {B}

Instant
You lose the game.