Name: Oreskos Swiftclaw Cost: 1W Type: Creature -- Cat Warrior Pow/Tgh: 3/1 Rules Text: Set/Rarity: Journey into Nyx common, Magic 2015 common, Core Set 2019 common, The List common Price: $0.03

Name: Organ Grinder Cost: 2B Type: Creature -- Zombie Pow/Tgh: 3/1 Rules Text: {T}, Exile three cards from your graveyard: Target player loses 3 life. Set/Rarity: Torment common Price: $0.11

Name: Organic Extinction Cost: 8WW Type: Sorcery Rules Text: Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Destroy all nonartifact creatures. Set/Rarity: Magic Online Promos rare, Neon Dynasty Commander rare, Murders at Karlov Manor Commander rare, Edge of Eternities Commander rare Price: $0.14

Name: Origin Spellbomb Cost: 1 Type: Artifact Rules Text: {1}, {T}, Sacrifice this artifact: Create a 1/1 colorless Myr artifact creature token. When this artifact is put into a graveyard from the battlefield, you may pay {W}. If you do, draw a card. Set/Rarity: Scars of Mirrodin common Price: $0.15

Name: Origin of Spider-Man Cost: 1W Type: Enchantment -- Saga Rules Text: (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I -- Create a 2/1 green Spider creature token with reach. II -- Put a +1/+1 counter on target creature you control. It becomes a legendary Spider Hero in addition to its other types. III -- Target creature you control gains double strike until end of turn. Set/Rarity: Through the Omenpaths rare, Marvel's Spider-Man Promos rare, Marvel's Spider-Man rare Price: $0.31

Name: Orim's Chant Cost: W Type: Instant Rules Text: Kicker {W} (You may pay an additional {W} as you cast this spell.) Target player can't cast spells this turn. If this spell was kicked, creatures can't attack this turn. Set/Rarity: Planeshift rare, Magic Online Promos rare, Judge Gift Cards 2008 rare, The List rare, Modern Horizons 3 rare Price: $3.70

Name: Orim's Cure Cost: 1W Type: Instant Rules Text: If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost. Prevent the next 4 damage that would be dealt to any target this turn. Set/Rarity: Mercadian Masques common Price: $0.16

Name: Orim's Prayer Cost: 1WW Type: Enchantment Rules Text: Whenever one or more creatures attack you, you gain 1 life for each attacking creature. Set/Rarity: Tempest uncommon Price: $0.52

Name: Orim's Touch Cost: W Type: Instant Rules Text: Kicker {1} (You may pay an additional {1} as you cast this spell.) Prevent the next 2 damage that would be dealt to any target this turn. If this spell was kicked, prevent the next 4 damage that would be dealt to that permanent or player this turn instead. Set/Rarity: Invasion common Price: $0.08

Name: Orim, Samite Healer Cost: 1WW Type: Legendary Creature -- Human Cleric Pow/Tgh: 1/3 Rules Text: {T}: Prevent the next 3 damage that would be dealt to any target this turn. Set/Rarity: Tempest rare, Tempest Remastered rare Price: $1.98

Name: Oriq Loremage Cost: 2BB Type: Creature -- Human Warlock Pow/Tgh: 3/3 Rules Text: {T}: Search your library for a card, put it into your graveyard, then shuffle. If it's an instant or sorcery card, put a +1/+1 counter on this creature. Set/Rarity: Magic Online Promos rare, Strixhaven: School of Mages rare, Strixhaven: School of Mages Promos rare Price: $0.54

Name: Oriss, Samite Guardian Cost: 1WW Type: Legendary Creature -- Human Cleric Pow/Tgh: 1/3 Rules Text: {T}: Prevent all damage that would be dealt to target creature this turn. Grandeur -- Discard another card named Oriss, Samite Guardian: Target player can't cast spells this turn, and creatures that player controls can't attack this turn. Set/Rarity: Future Sight rare Price: $0.79

Name: Ormendahl, Profane Prince Type: Legendary Creature -- Demon Pow/Tgh: 9/7 Rules Text: Flying, lifelink, indestructible, haste [Back face. Transforms from Westvale Abbey. B color indicator.] Set/Rarity: Shadows over Innistrad Promos rare, Shadows over Innistrad rare, Secret Lair Drop rare, Shadows over Innistrad Remastered rare, Innistrad Remastered rare Price: $1.42

Name: Ormendahl, the Corrupter Type: Legendary Creature -- Demon Pow/Tgh: 6/6 Rules Text: Flying, trample, lifelink Sacrifice another creature: Draw a card. [Back face. Transforms from Jerren, Corrupted Bishop. B color indicator.] Set/Rarity: Innistrad: Midnight Hunt mythic, Innistrad: Midnight Hunt Promos mythic, Innistrad: Double Feature mythic Price: $0.30

Name: Ornate Kanzashi Cost: 5 Type: Artifact Rules Text: {2}, {T}: Target opponent exiles the top card of their library. You may play that card this turn. Set/Rarity: Betrayers of Kamigawa rare Price: $0.41

Name: Ornitharch Cost: 3WW Type: Creature -- Archon Pow/Tgh: 3/3 Rules Text: Flying Tribute 2 (As this creature enters, an opponent of your choice may put two +1/+1 counters on it.) When this creature enters, if tribute wasn't paid, create two 1/1 white Bird creature tokens with flying. Set/Rarity: Born of the Gods uncommon Price: $0.11

Name: Ornithopter Cost: 0 Type: Artifact Creature -- Thopter Pow/Tgh: 0/2 Rules Text: Flying Set/Rarity: Antiquities common, Foreign Black Border uncommon, Revised Edition uncommon, Summer Magic / Edgar uncommon, Fourth Edition uncommon, Fourth Edition Foreign Black Border uncommon, Fifth Edition uncommon, Classic Sixth Edition uncommon, Mirrodin uncommon, World Championship Decks 2004 uncommon, Ninth Edition uncommon, Tenth Edition uncommon, Magic 2010 uncommon, Magic 2011 uncommon, Salvat 2011 uncommon, Magic 2015 common, Kaladesh Inventions special, Aether Revolt uncommon, Historic Anthology 1 uncommon, Secret Lair Drop rare, The List common, Kaladesh Remastered uncommon, The Brothers' War Retro Artifacts uncommon, Dominaria Remastered common Price: $0.20

Name: Ornithopter of Paradise Cost: 2 Type: Artifact Creature -- Thopter Pow/Tgh: 0/2 Rules Text: Flying {T}: Add one mana of any color. Set/Rarity: The List common, Modern Horizons 2 common, Jumpstart: Historic Horizons common, Commander Masters common, Bloomburrow Commander common, Foundations Jumpstart common, Aetherdrift Commander common Price: $0.40

Name: Orochi Hatchery Cost: XX Type: Artifact Rules Text: This artifact enters with X charge counters on it. {5}, {T}: Create a 1/1 green Snake creature token for each charge counter on this artifact. Set/Rarity: Champions of Kamigawa rare, Commander 2015 rare Price: $0.71

Name: Orochi Soul-Reaver Cost: 5B Type: Creature -- Snake Ninja Rogue Pow/Tgh: 5/4 Rules Text: Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever one or more creatures you control deal combat damage to a player, create a Treasure token and manifest the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.) Set/Rarity: Outlaws of Thunder Junction Commander rare Price: $4.88