25517 cards found
Obscuring Aether

Obscuring Aether {G}

Enchantment
Face-down creature spells you cast cost {1} less to cast.
{1}{G}: Turn this enchantment 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
Observed Stasis

Observed Stasis {3}{U}

Enchantment - Aura
Flash
Enchant creature an opponent controls
When this Aura enters, remove enchanted creature from combat. Then draw a card for each tapped creature its controller controls.
Enchanted creature loses all abilities and can't attack or block.
  • Final Fantasy Commander 40 113
Obsessive Astronomer

Obsessive Astronomer {1}{R}

Creature - Human Wizard
If it's neither day nor night, it becomes day as this creature 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 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 this creature 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
Obsessive Stitcher

Obsessive Stitcher {1}{U}{B}

Creature - Human Wizard
{T}: Draw a card, then discard a card.
{2}{U}{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield.
No one is as dedicated to perfection as a stitcher working on their latest masterpiece.
0/3
Related card: Bind to Secrecy
Obsianus Golem

Obsianus Golem {6}

Artifact Creature - Golem
"The foot stone is connected to the ankle stone, the ankle stone is connected to the leg stone . . . ."
—"Song of the Artificer"
4/6
Obsidian Acolyte

Obsidian Acolyte {1}{W}

Creature - Human Cleric
Protection from black
{W}: Target creature gains protection from black until end of turn.
The truthful will stand in the gaze of death and escape unharmed.
—Obsidian acolyte creed
1/1
  • Invasion
Obsidian Battle-Axe

Obsidian Battle-Axe {3}

Kindred Artifact - Warrior Equipment
Equipped creature gets +2/+1 and has haste.
Whenever a Warrior creature enters, you may attach this Equipment to it.
Equip {3}
It's the flint that sparks a warrior's rage.
Obsidian Fireheart

Obsidian Fireheart {1}{R}{R}{R}

Creature - Elemental
{1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you."
4/4
Obsidian Giant

Obsidian Giant {4}{R}

Creature - Giant
After a while, ships stopped sailing within his reach.
4/4
  • Portal Second Age
Obsidian Obelisk

Obsidian Obelisk {2}

Artifact
This artifact enters tapped.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a multicolored spell.
  • Dominaria United Commander 18 94
Obstinate Baloth

Obstinate Baloth {2}{G}{G}

Creature - Beast
When this creature enters, you gain 4 life.
If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield instead of putting it into your graveyard.
4/4
Obstinate Familiar

Obstinate Familiar {R}

Creature - Lizard
If you would draw a card, you may skip that draw instead.
"Lizards make excellent familiars. They never know when they've lost."
—Matoc, lavamancer
1/1
  • Odyssey
Obuun, Mul Daya Ancestor

Obuun, Mul Daya Ancestor {1}{R}{G}{W}

Legendary Creature - Elf Spirit
At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuun's power. It's still a land.
Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature.
3/3
Obyra's Attendants

Obyra's Attendants {4}{U}

Creature - Faerie Wizard
Flying
Obyra's devoted servants shrieked as their sleeping mistress slashed at them, unseeing.
3/4
Card has other part: Desperate Parry
  • Wilds of Eldraine
Obyra, Dreaming Duelist

Obyra, Dreaming Duelist {U}{B}

Legendary Creature - Faerie Warrior
Flash
Flying
Whenever another Faerie you control enters, each opponent loses 1 life.
Obyra sleepwalks through the wilds, hunting for worthy opponents.
2/2
  • Wilds of Eldraine
Obzedat's Aid

Obzedat's Aid {3}{W}{B}

Sorcery
Return target permanent card from your graveyard to the battlefield.
"The Obzedat have revived you with purpose. Don't squander their blessing."
—Teysa Karlov, Grand Envoy of Orzhov
  • Dragon's Maze
Obzedat, Ghost Council

Obzedat, Ghost Council {1}{W}{W}{B}{B}

Legendary Creature - Spirit Advisor
When Obzedat enters, target opponent loses 2 life and you gain 2 life.
At the beginning of your end step, you may exile Obzedat. If you do, return it to the battlefield under its owner's control at the beginning of your next upkeep. It gains haste.
5/5
Occult Epiphany

Occult Epiphany {X}{U}

Instant
Draw X cards, then discard X cards. Create a 1/1 white Spirit creature token with flying for each card type among cards discarded this way.
In a single unending moment, a hundred lifetimes of knowledge coursed through his unraveling mind.
  • Crimson Vow Commander 14 52
Ochran Assassin

Ochran Assassin {1}{B}{G}

Creature - Elf Assassin
Deathtouch
All creatures able to block this creature do so.
"The dagger is just the distraction. I carry the real killer in a vial at my side."
1/1
Ochre Jelly

Ochre Jelly {X}{G}

Creature - Ooze
Trample
This creature enters with X +1/+1 counters on it.
Split — When this creature dies, if it had two or more +1/+1 counters on it, create a token that's a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.
0/0
Related card: Ochre Jelly (Alchemy)
  • Adventures in the Forgotten Realms Promos 196a 196p 196s
  • Adventures in the Forgotten Realms 196 330
Octavia, Living Thesis

Octavia, Living Thesis {8}{U}{U}

Legendary Creature - Elemental Octopus
This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard.
Ward {8}
Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.
8/8