Name: Rottenmouth Viper Cost: 5B Type: Creature -- Elemental Snake Pow/Tgh: 6/6 Rules Text: As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs {1} less to cast for each permanent sacrificed this way. Whenever this creature enters or attacks, put a blight counter on it. Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent of their choice or discards a card. Set/Rarity: Bloomburrow Promos mythic, Bloomburrow mythic Price: $6.42

Name: Rotting Fensnake Cost: 3B Type: Creature -- Zombie Snake Pow/Tgh: 5/1 Rules Text: Set/Rarity: Innistrad common Price: $0.06

Name: Rotting Giant Cost: 1B Type: Creature -- Zombie Giant Pow/Tgh: 3/3 Rules Text: Whenever this creature attacks or blocks, sacrifice it unless you exile a card from your graveyard. Set/Rarity: Odyssey uncommon Price: $0.29

Name: Rotting Legion Cost: 4B Type: Creature -- Zombie Pow/Tgh: 4/5 Rules Text: This creature enters tapped. Set/Rarity: Magic 2011 common Price: $0.06

Name: Rotting Mastodon Cost: 4B Type: Creature -- Zombie Elephant Pow/Tgh: 2/8 Rules Text: Set/Rarity: Khans of Tarkir common Price: $0.05

Name: Rotting Rats Cost: 1B Type: Creature -- Zombie Rat Pow/Tgh: 1/1 Rules Text: When this creature enters, each player discards a card. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) Set/Rarity: Conflux common, Planechase common Price: $0.70

Name: Rotting Regisaur Cost: 2B Type: Creature -- Zombie Dinosaur Pow/Tgh: 7/6 Rules Text: At the beginning of your upkeep, discard a card. Set/Rarity: Core Set 2020 rare, Core Set 2020 Promos rare, Secret Lair Drop rare, The List rare Price: $1.80

Name: Rouse Cost: 1B Type: Instant Rules Text: If you control a Swamp, you may pay 2 life rather than pay this spell's mana cost. Target creature gets +2/+0 until end of turn. Set/Rarity: Mercadian Masques common Price: $0.17

Name: Rousing of Souls Cost: 2W Type: Sorcery Rules Text: Parley -- Each player reveals the top card of their library. For each nonland card revealed this way, you create a 1/1 white Spirit creature token with flying. Then each player draws a card. Set/Rarity: Conspiracy common Price: $0.14

Name: Rout Cost: 3WW Type: Sorcery Rules Text: You may cast this spell as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.) Destroy all creatures. They can't be regenerated. Set/Rarity: Invasion rare, Magic Online Promos rare, Conspiracy rare, Commander 2017 rare, The List rare, Commander 2021 rare Price: $0.29

Name: Rover Blades Cost: 3 Type: Artifact -- Equipment Vehicle Pow/Tgh: 2/2 Rules Text: Double strike Equipped creature has double strike. Equip {4} Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn. Creatures can't be attached to other permanents.) Set/Rarity: Aetherdrift uncommon Price: $0.10

Name: Roving Harper Cost: 2W Type: Creature -- Elf Scout Pow/Tgh: 2/2 Rules Text: When this creature enters, draw a card. Set/Rarity: Commander Legends: Battle for Baldur's Gate common Price: $0.09

Name: Roving Keep Cost: 7 Type: Artifact Creature -- Wall Pow/Tgh: 5/7 Rules Text: Defender {7}: This creature gets +2/+0 and gains trample until end of turn. It can attack this turn as though it didn't have defender. Set/Rarity: Throne of Eldraine common, Jumpstart common Price: $0.08

Name: Rowan's Grim Search Cost: 2B Type: Instant Rules Text: Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) If this spell was bargained, look at the top four cards of your library, then put up to two of them back on top of your library in any order and the rest into your graveyard. You draw two cards and you lose 2 life. Set/Rarity: Wilds of Eldraine common Price: $0.17

Name: Royal Assassin Cost: 1BB Type: Creature -- Human Assassin Pow/Tgh: 1/1 Rules Text: {T}: Destroy target tapped creature. Set/Rarity: Limited Edition Alpha rare, Limited Edition Beta rare, Unlimited Edition rare, Intl. Collectors' Edition rare, Collectors' Edition rare, Foreign Black Border rare, Revised Edition rare, Summer Magic / Edgar rare, Fourth Edition rare, Fourth Edition Foreign Black Border rare, Junior Super Series rare, Magic Online Promos rare, Japan Junior Tournament rare, Eighth Edition rare, Junior Series Europe rare, Ninth Edition rare, Tenth Edition rare, Magic 2010 rare, Magic 2011 rare, Magic 2012 rare, 30th Anniversary Edition rare, Dominaria Remastered rare, Assassin's Creed rare Price: $0.39

Name: Royal Decree Cost: 2WW Type: Enchantment Rules Text: Cumulative upkeep {W} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever a Swamp, Mountain, black permanent, or red permanent becomes tapped, this enchantment deals 1 damage to that permanent's controller. Set/Rarity: Alliances rare, Masters Edition II rare Price: $0.73

Name: Royal Falcon Cost: 1W Type: Creature -- Bird Pow/Tgh: 1/1 Rules Text: Flying Set/Rarity: Starter 1999 common, Starter 2000 common Price: $0.10

Name: Royal Herbalist Cost: W Type: Creature -- Human Cleric Pow/Tgh: 1/1 Rules Text: {2}, Exile the top card of your library: You gain 1 life. Set/Rarity: Alliances common Price: $0.10

Name: Royal Trooper Cost: 2W Type: Creature -- Human Soldier Pow/Tgh: 2/2 Rules Text: Whenever this creature blocks, it gets +2/+2 until end of turn. Set/Rarity: Starter 1999 uncommon, Masters Edition II common, Battlebond common, The List common Price: $0.04

Name: Royal Warden Cost: 3BB Type: Artifact Creature -- Necron Pow/Tgh: 3/2 Rules Text: Phalanx Commander -- When this creature enters, create two tapped 2/2 black Necron Warrior artifact creature tokens. Unearth {3}{B} ({3}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) Set/Rarity: Warhammer 40,000 Commander rare Price: $0.43