Name: Ordeal of Erebos Cost: 1B Type: Enchantment -- Aura Rules Text: Enchant creature Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice this Aura. When you sacrifice this Aura, target player discards two cards. Set/Rarity: Theros uncommon Price: $0.16

Name: Ordeal of Heliod Cost: 1W Type: Enchantment -- Aura Rules Text: Enchant creature Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice this Aura. When you sacrifice this Aura, you gain 10 life. Set/Rarity: Theros uncommon, Masters 25 uncommon Price: $0.11

Name: Order of Leitbur Cost: WW Type: Creature -- Human Cleric Knight Pow/Tgh: 2/1 Rules Text: Protection from black {W}: This creature gains first strike until end of turn. {W}{W}: This creature gets +1/+0 until end of turn. Set/Rarity: Fallen Empires common, Pro Tour Collector Set common, Masters Edition common Price: $0.24

Name: Order of Midnight Cost: 1B Type: Creature -- Human Knight Pow/Tgh: 2/2 Rules Text: Flying This creature can't block. [Related to Alter Fate.] Set/Rarity: Magic Online Promos uncommon, Throne of Eldraine uncommon, The List uncommon, March of the Machine Commander uncommon Price: $0.10

Name: Order of Sacred Dusk Cost: 6WB Type: Creature -- Vampire Knight Pow/Tgh: 5/5 Rules Text: Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, lifelink, haste Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) Other Vampires you control have exalted. Set/Rarity: The Lost Caverns of Ixalan Commander rare Price: $0.23

Name: Order of Whiteclay Cost: 1WW Type: Creature -- Kithkin Cleric Pow/Tgh: 1/4 Rules Text: {1}{W}{W}, {Q}: Return target creature card with mana value 3 or less from your graveyard to the battlefield. ({Q} is the untap symbol.) Set/Rarity: Shadowmoor rare, Commander Legends: Battle for Baldur's Gate rare Price: $0.34

Name: Order of Yawgmoth Cost: 2BB Type: Creature -- Phyrexian Zombie Knight Pow/Tgh: 2/2 Rules Text: Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever this creature deals damage to a player, that player discards a card. Set/Rarity: Urza's Saga uncommon, Duel Decks: Phyrexia vs. the Coalition uncommon, The List uncommon Price: $0.12

Name: Order of the Ebon Hand Cost: BB Type: Creature -- Cleric Knight Pow/Tgh: 2/1 Rules Text: Protection from white {B}: This creature gains first strike until end of turn. {B}{B}: This creature gets +1/+0 until end of turn. Set/Rarity: Fallen Empires common, Pro Tour Collector Set common, Masters Edition common Price: $0.20

Name: Order of the Golden Cricket Cost: 1W Type: Creature -- Kithkin Knight Pow/Tgh: 2/2 Rules Text: Whenever this creature attacks, you may pay {W}. If you do, it gains flying until end of turn. Set/Rarity: Morningtide common, Jumpstart 2022 common Price: $0.10

Name: Order of the Sacred Torch Cost: 1WW Type: Creature -- Human Knight Pow/Tgh: 2/2 Rules Text: {T}, Pay 1 life: Counter target black spell. Set/Rarity: Ice Age rare, Fifth Edition rare, Classic Sixth Edition rare, Masters Edition II rare Price: $0.80

Name: Order of the Stars Cost: W Type: Creature -- Human Cleric Pow/Tgh: 0/1 Rules Text: Defender (This creature can't attack.) As this creature enters, choose a color. This creature has protection from the chosen color. Set/Rarity: Guildpact uncommon Price: $0.13

Name: Order of the White Shield Cost: WW Type: Creature -- Human Knight Pow/Tgh: 2/1 Rules Text: Protection from black {W}: This creature gains first strike until end of turn. {W}{W}: This creature gets +1/+0 until end of turn. Set/Rarity: Ice Age uncommon, Fifth Edition uncommon, Oversized League Prizes rare, Anthologies uncommon, Masters Edition II uncommon Price: $0.39

Name: Oreskos Explorer Cost: 1W Type: Creature -- Cat Scout Pow/Tgh: 2/2 Rules Text: When this creature enters, search your library for up to X Plains cards, where X is the number of players who control more lands than you. Reveal those cards, put them into your hand, then shuffle. Set/Rarity: Commander 2015 uncommon, Legendary Cube Prize Pack uncommon, Commander 2017 uncommon, Commander Anthology Volume II uncommon, Battlebond uncommon, The List uncommon, Commander Legends uncommon, Commander 2021 uncommon, Commander Masters uncommon Price: $0.18

Name: Oreskos Sun Guide Cost: 1W Type: Creature -- Cat Monk Pow/Tgh: 2/2 Rules Text: Inspired -- Whenever this creature becomes untapped, you gain 2 life. Set/Rarity: Born of the Gods common Price: $0.15

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: $0.07

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: $0.12

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: $0.25

Name: Ori, Keeper of Songs Cost: 2W Type: Legendary Creature -- Dwarf Bard Pow/Tgh: 3/3 Rules Text: Storied (If you control three or more artifacts, legendaries, and/or Sagas, you have an enduring story for the rest of the game.) As long as you have an enduring story, Ori gets +1/+0 and has vigilance. Set/Rarity: The Hobbit common Price: $0.15

Name: Ori, Plate Stacker Cost: 5WW Type: Legendary Creature -- Dwarf Bard Pow/Tgh: 3/3 Rules Text: When Ori enters, destroy all artifacts and enchantments your opponents control. You gain 1 life for each permanent destroyed this way. Set/Rarity: The Hobbit Eternal rare Price: $3.48

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: $0.13