5974 cards found
Omhok the Revealer

Omhok the Revealer {2}{U}{U}

Legendary Creature - Bird Wizard
Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
Spells you cast from zones other than your hand cost {3} less to cast.
“See with your mind, not your eyes!”
2/4
  • Ophorio
Omid, the Undefeated

Omid, the Undefeated {3}{B}{G}{W}

Legendary Creature - Demon Soldier
Flying
Whenever Omid enters or one or more Armies you control attack, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
3/8
  • Alkabah
Ominous Discovery

Ominous Discovery {1}{U}

Sorcery
Look at the top two cards of your library. Put one of them into your hand and the rest into your graveyard.
Rerun (If you cast this from your hand, exile it as it resolves. Whenever a creature you control dies, you may cast this card from exile without paying its mana cost.)
Ominous Dragoncaller

Ominous Dragoncaller {1}{R}{R}

Creature - Human Shaman
Ominous Dragoncaller gets +1/+1 and has flying as long as you control a Dragon.
3/2
Card has other part: Call of the Dragon
  • MSEM Masters: Legends
Ominous Hart

Ominous Hart {7}{B}{B}

Creature - Elk Horror
This spell costs {1} less to cast for each card in your graveyard.
Menace
“Every now and then I get a little bit restless, and dream of something wild.”
—Mia Reyes, Xenobiologist
4/3
Ominous Lair

Ominous Lair

Land
Ominous Lair enters tapped unless you have 15 or less life.
{T}: Add {W} or {B}.
Yldar, home to the devious azra and seat of Zarad's growing empire.
  • The Land Bundle
On the Shoulders of Giants

On the Shoulders of Giants {2}{G}

Enchantment
Whenever a creature dies, put a +1/+1 counter on each creature you control with power less than it.
{3}{G}, Sacrifice a creature: Draw cards equal to the sacrificed creature's power.
“These skeletons we found...I think they might be giants.”
  • Love Song
Once Abandoned

Once Abandoned {1}{G}{G}

Instant
This spell costs {G} less to cast if it targets a blue or black permanent.
Destroy target artifact, enchantment, or planeswalker.
Once Betrayed

Once Betrayed {2}{B}{B}

Instant
This spell costs {1}{B} less to cast if it targets a green or white permanent.
Destroy target creature or planeswalker.
“I had a crush... until you started talking to the gun.”
Once Denied

Once Denied {2}{U}{U}{U}

Instant
This spell costs {1}{U} less to cast if it targets a red or green spell.
Counter target spell.
Draw a card.
“This is not what the future of Piltover looks like, dear boys!”
Once Scarred

Once Scarred {R}{R}

Instant
This spell costs {R} less to cast if it targets a white or blue permanent.
Once Scarred deals 4 damage to target creature or planeswalker.
“We shared a vision, Vander. A dream of freedom. Do you even remember?”
Once Shunned

Once Shunned {1}{W}{W}

Instant
This spell costs {W} less to cast if it targets a black or red permanent.
Exile target nonland permanent with mana value 3 or less.
“Topside and bottom. Oil and water. That's all there is.”
One

One {3}{B}{B}

Sorcery
For each player, choose a creature or planeswalker that player controls. Each player sacrifices all creatures and planeswalkers they control not chosen this way.
Fuse (You may cast one or both halves of this card from your hand.)
Card has other part: Done
One Bad Night

One Bad Night {1}{B}

Instant
Destroy target monocolored creature.
Augmented — If you've spent {W}{U}{B}{R}{G} to cast spells this turn, return that card to the battlefield under your control.
One with the Herd

One with the Herd {X}{G}{G}

Sorcery
Until end of turn, target creature gets +X/+X and can only be blocked by X or more creatures.
Charge with all the ferocity of the herd and no one will be able to tell the difference.
  • High Noon
One with the World

One with the World {G}

Sorcery
Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Scry 2.
Onigori, Ema's Shield

Onigori, Ema's Shield {3}{U}{U}

Legendary Creature - Elemental
Spells your opponents cast that target Onigori, Ema's Shield cost {2} more to cast.
Whenever Onigori deals combat damage to a player, that player can't untap more than two permanents during their next untap step.
“Onigori's been through it all, and none of it has gotten through him.”
—Ema, the traveler
5/5
  • Monsters of Chikyu
Onoran Runeglyphs

Onoran Runeglyphs {4}

Artifact
Onoran Runeglyphs enters tapped.
{T}: Add two mana in any combination of colors from among creatures you control.
Menagerie — {2}, {T}: Draw a card. Activate only if there are five or more creature types among creatures you control.
  • Adventurers of Onora
Ontarachie Apex

Ontarachie Apex {2}{R}{R}

Creature - Dragon
Flying
Creatures you don't control have “{T}: This creature fights Ontarachie Apex. Activate only as a sorcery.”
6/5
  • Eralou
Ontarachie Curio

Ontarachie Curio {G}{G}

Artifact
Whenever you draw a card, put a +1/+1 counter on Ontarachie Curio.
{T}, Remove a +1/+1 counter from Ontarachie Curio: Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”
{1}{G}: Ontarachie Curio becomes a green 2/1 Dryad creature until end of turn. (It's no longer an artifact.)
  • Over the Horizon
Ontarachie Dryad

Ontarachie Dryad {1}{G}{G}

Creature - Dryad
Whenever you draw a card, put a +1/+1 counter on Ontarachie Dryad.
Remove a counter from Ontarachie Dryad: Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”
2/1
  • Eralou
Ontarachie Hunter
Scaleblight Cutthroat

Ontarachie Hunter {B}

Creature - Merfolk Rogue
Whenever Ontarachie Hunter attacks, each opponent loses 1 life.
At the beginning of your end step, if an opponent has 10 or less life, transform Ontarachie Hunter.
1/1
Card has other part: Scaleblight Cutthroat
  • Eralou
Ontarachie Vagabond

Ontarachie Vagabond {1}{W}

Creature - Fungus Scout
If you would germinate, instead create a 1/1 green Saproling creature token, then put a +1/+1 counter on a creature you control.
{2}{W}{W}: Germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)
2/2
Onward to War

Onward to War {1}{W}{W}

Enchantment - Road
When Onward to War enters, draw a card, then choose a card name.
Whenever one or more creatures you control with the chosen name attack, look at the top four cards of your library. Put a creature or enchantment card with mana value 3 or less from among them into your hand. Put the rest on the bottom of your library in any order.
  • Road to Carü Mapu
Onya the Gilded

Onya the Gilded {1}{R}{W}{B}

Legendary Planeswalker - Gestalt
When Onya the Gilded dies, search your library for a planeswalker card with a different name, reveal it, put it into your hand, then shuffle.
[–1]: Draw up to two cards. For each of those cards, pay 1 life or discard a card.
[–2]: Creatures you control get +1/+1 until your next turn.
[–3]: Onya the Gilded deals 3 damage to any target and you gain 3 life.
Loyalty:
5
  • Sparks of a Multiverse