3263 cards found
On Marvelous Wings

On Marvelous Wings {2}{U}

Enchantment - Saga
I, II — Put your choice of a flying or hexproof counter on target creature you control.
III — Creatures you control with counters on them can't be blocked this turn unless defending player pays {3} and spells that target those creatures cost an additional {3} to cast until your next turn.
  • Kahembo: Olde Dawn
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
One With the Wind

One With the Wind {1}{U}

Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+2 and has flying.
Aqar nursed the injured drake back to health, and in return was shown a world far beyond his wildest dreams.
  • Al Tabaq
One on One

One on One {1}{W}

Enchantment
Vanguard — Whenever a creature you control attacks alone, put a +1/+1 counter on it.
In a duel between Chikyu's trainers, honor demands that each side use only a single monster at a time.
  • Monsters of Chikyu
One with Nature

One with Nature {G}

Enchantment - Aura
Enchant creature
Whenever enchanted creature deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
Gendra provided a pleasant environment to those who'd only known a war torn Khaliz-Dorahn.
  • Aftermath
One with Seishin

One with Seishin {1}{W}

Enchantment
Colorless creatures you control get +1/+1.
Though the living fall by the thousands each day, our Ancestors still watch over us, guiding us at every turn.
  • Path of Shadows
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
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
Onya's Study

Onya's Study {R}{W}{B}

Enchantment - Study
Archive 6 (As this enters, shuffle the top six cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever a creature or planeswalker you control dies, you may play a card from the archived library. (You still pay its costs.)
Open Road

Open Road {R}

Enchantment
Whenever Open Road or another permanent you control enters, if it has the greatest mana value among permanents you control, you may discard a card. If you do, draw a card.
Open Source

Open Source {2}

Enchantment
At the beginning of your upkeep, each player conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)
“In a just world there is no ownership. Creation belongs to us all.”
—Sallmar, Father of the Free
Related card: Data-Point
  • Beyond the Blackwall
Open the Wilds

Open the Wilds {G}{G}

Enchantment
At the beginning of your upkeep, reveal the bottom card of your library. You may cast it if it's a creature card. Otherwise, exile it.
Silence is just the sound of something planning to eat you.
  • Oirohpo
Ophidian Augury

Ophidian Augury {4}{U}{U}

Enchantment
Once each turn, you may pay {U} rather than pay the mana cost for a blue spell you cast.
“See the beyond. Taste it. Consume it as it consumes you. Become one with the infinite void and learn true power.”
  • Kahembo: Olde Dawn
Oppressive Rays

Oppressive Rays {W}

Enchantment - Aura
Enchant creature
Enchanted creature can't attack or block unless its controller pays {3}.
Activated abilities of enchanted creature cost {3} more to activate.
Staring down the Lotus and merely being blinded would be a mercy.
  • Novea
Oppressive Tithes

Oppressive Tithes {3}{W}{W}

Enchantment
Creatures can't attack you unless their controller pays {3} for each of those creatures.
While many temples practice kindness and charity, some house more golden coins than golden hearts.
  • Mious
Oracle's Ploy

Oracle's Ploy {B}

Enchantment - Aura
Enchant creature
Enchanted creature gets -3/-3.
When enchanted creature dies, its controller may scry 1.
A master fortune teller knows when you should tell someone's fortune, and when you should create someone's fortune.
  • Eralou
Order Module

Order Module {2}{W}{W}

Enchantment - Module
(Activate each submodule once as a sorcery. When this enters, activate one submodule for free.)
{W}{W}{W}: Purpose
Create three 1/1 white Spirit creature tokens with flying.
{W}{W}{W}: Justice
Exile target nonland permanent you don't control until Order Module leaves the battlefield.
{W}{W}{W}: Unity
Order Module gains “Creatures you control get +1/+1.”
Oread of Rising Chaos

Oread of Rising Chaos {2}{R}

Enchantment Creature - Nymph
Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] You may discard a card. If you do, draw a card.
[Lore III] Create a token that's a copy of another target creature you control, except it has haste. Sacrifice it at the beginning of the next end step.
3/1
  • Theros Triumphant
Orichi of the Cold Mist

Orichi of the Cold Mist {1}{U}

Legendary Creature - Drake
Flash (You may cast this spell any time you could cast an instant.)
Flying
When Orichi of the Cold Mist enters, exile another target creature you control. Return that card to the battlefield under its owner's control at the beginning of the next end step.
2/1
Oriveen, Scroll Savant

Oriveen, Scroll Savant {1}{U}

Legendary Creature - Human Wizard
Each instant and sorcery card in your hand has cycling {2}. ({2}, Discard this card: Draw a card.)
At the beginning of your end step, if there are four or more instant and/or sorcery cards in your graveyard, you may pay {1}{U/R}. If you do, return an instant or sorcery card at random from your graveyard to your hand.
1/3
  • Seasons of War
Orlesia, First of the Sen

Orlesia, First of the Sen {W}{U}{B}

Legendary Artifact Creature - Wizard
Your opponents play with the top card of their library revealed.
Your opponents can't cast spells during your turn.
You may play lands and cast spells from the top of an opponent's library during your turn.
1/3
Ormh, Discordant Envoy

Ormh, Discordant Envoy {2}{U}{B}{R}

Legendary Creature - Human Warlock
Flying, deathtouch
Once each turn, when you cast a spell from your graveyard, you may cast target card in your graveyard with lesser mana value than that spell without paying its mana cost. If that spell would be put into your graveyard, exile it instead.
4/5
  • Over the Horizon
Orodu, the Onyx Wave

Orodu, the Onyx Wave {2}{B}{B}

Legendary Creature - Leviathan
Trample
Orodu, the Onyx Wave can't block.
Whenever Orodu attacks, defending player may sacrifice a creature. If they do, prevent all combat damage Orodu would deal this turn.
8/8
  • Dark Seas of Shiryen
Orphan-Ward Lei Yu

Orphan-Ward Lei Yu {2}{G/W}

Legendary Creature - Cat Cleric Monk
Vigilance
You may look at the top card of your library any time.
Whenever you cast a creature spell from your hand, you may cast the top card of your library without paying its mana cost if it's a creature card with lesser mana value.
3/3
  • Panxiou