Name: Underworld Dreams Cost: BBB Type: Enchantment Rules Text: Whenever an opponent draws a card, this enchantment deals 1 damage to that player. Set/Rarity: Legends uncommon, Magic Online Promos rare, Eighth Edition rare, Ninth Edition rare, Two-Headed Giant Tournament rare, Tenth Edition rare, Magic 2010 rare, Duels of the Planeswalkers rare, Salvat 2011 rare, Secret Lair Drop rare, Theros Beyond Death uncommon Price: $2.45

Name: Underworld Hermit Cost: 4BB Type: Creature -- Human Peasant Pow/Tgh: 3/3 Rules Text: When this creature enters, create a number of 1/1 green Squirrel creature tokens equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) Set/Rarity: The List uncommon, Modern Horizons 2 uncommon Price: $0.15

Name: Underworld Sentinel Cost: 3BB Type: Creature -- Skeleton Soldier Pow/Tgh: 4/5 Rules Text: Whenever this creature attacks, exile target creature card from your graveyard. When this creature dies, put all cards exiled with it onto the battlefield. Set/Rarity: Theros Beyond Death rare Price: $0.32

Name: Undiscovered Paradise Type: Land Rules Text: {T}: Add one mana of any color. During your next untap step, as you untap your permanents, return this land to its owner's hand. Set/Rarity: Visions rare, World Championship Decks 1997 rare, World Championship Decks 1998 rare, Magic Online Promos rare Price: $37.04

Name: Undying Beast Cost: 3B Type: Creature -- Beast Pow/Tgh: 3/2 Rules Text: When this creature dies, put it on top of its owner's library. Set/Rarity: Portal common Price: $0.17

Name: Undying Evil Cost: B Type: Instant Rules Text: Target creature gains undying until end of turn. (When it dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) Set/Rarity: Dark Ascension common Price: $0.45

Name: Undying Malice Cost: B Type: Instant Rules Text: Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it." Set/Rarity: Innistrad: Crimson Vow common, Innistrad: Double Feature common, Foundations common Price: $0.38

Name: Unearth Cost: B Type: Sorcery Rules Text: Return target creature card with mana value 3 or less from your graveyard to the battlefield. Cycling {2} ({2}, Discard this card: Draw a card.) Set/Rarity: Urza's Legacy common, Magic Online Promos common, Masters 25 common, Modern Horizons common, Secret Lair Drop rare, The List common, Double Masters 2022 common, Store Championships rare, Historic Anthology 7 common Price: $0.50

Name: Uneasy Alliance Cost: 1W Type: Enchantment -- Aura Rules Text: Enchant creature Enchanted creature can't attack or block. {5}, Sacrifice this Aura: Exile enchanted creature. You create a 1/1 black Ninja creature token. Activate only as a sorcery. Set/Rarity: Teenage Mutant Ninja Turtles common Price: $0.14

Name: Unerring Sling Cost: 3 Type: Artifact Rules Text: {3}, {T}, Tap an untapped creature you control: This artifact deals damage equal to the tapped creature's power to target attacking or blocking creature with flying. Set/Rarity: Mirage uncommon Price: $0.20

Name: Unexpected Fangs Cost: 1B Type: Instant Rules Text: Put a +1/+1 counter and a lifelink counter on target creature. Set/Rarity: Ikoria: Lair of Behemoths common, The List common Price: $0.22

Name: Unexpectedly Absent Cost: XWW Type: Instant Rules Text: Put target nonland permanent into its owner's library just beneath the top X cards of that library. Set/Rarity: Commander 2013 rare, Eternal Masters rare, Commander Anthology rare, Commander 2020 rare Price: $0.30

Name: Unexplained Absence Cost: 3W Type: Instant Rules Text: For each player, exile up to one target nonland permanent that player controls. For each permanent exiled this way, its controller cloaks the top card of their library. (To cloak a card, put it onto the battlefield face down as a 2/2 creature with ward {2}. Turn it face up any time for its mana cost if it's a creature card.) Set/Rarity: Murders at Karlov Manor Commander rare Price: $0.35

Name: Unfinished Business Cost: 3WW Type: Sorcery Rules Text: Return target creature card from your graveyard to the battlefield, then return up to two target Aura and/or Equipment cards from your graveyard to the battlefield attached to that creature. (If the Auras can't enchant that creature, they remain in your graveyard.) Set/Rarity: Wilds of Eldraine Commander rare, Final Fantasy Commander rare Price: $0.28

Name: Unforgiving One Cost: 2B Type: Creature -- Spirit Pow/Tgh: 2/3 Rules Text: Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of modified creatures you control. (Equipment, Auras you control, and counters are modifications.) Set/Rarity: Kamigawa: Neon Dynasty uncommon Price: $0.22

Name: Unfortunate Accident Cost: B Type: Instant Rules Text: Spree (Choose one or more additional costs.) + {2}{B} -- Destroy target creature. + {1} -- Create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery." Set/Rarity: Outlaws of Thunder Junction uncommon Price: $0.05

Name: Unglued Pea-Brained Dinosaur Type: Stickers Rules Text: {TK}{TK} -- {T}: Add {2}. Spend this mana only to cast creature spells. {TK}{TK}{TK}{TK} -- At the beginning of combat on your turn, target noncreature artifact you control becomes a 4/4 artifact creature with flying until end of turn. {TK}{TK} -- 2/4 {TK}{TK}{TK}{TK}{TK} -- 8/6 Set/Rarity: Unfinity Sticker Sheets common Price: $2.08

Name: Unhallowed Cathar Type: Creature -- Zombie Soldier Pow/Tgh: 2/1 Rules Text: This creature can't block. [Back face. Transforms from Loyal Cathar. B color indicator.] Set/Rarity: Dark Ascension common Price: $0.09

Name: Unhallowed Pact Cost: 2B Type: Enchantment -- Aura Rules Text: Enchant creature When enchanted creature dies, return that card to the battlefield under your control. Set/Rarity: Avacyn Restored common, Conspiracy common, Duel Decks: Nissa vs. Ob Nixilis common Price: $0.06

Name: Unhallowed Phalanx Cost: 4B Type: Creature -- Zombie Soldier Pow/Tgh: 1/13 Rules Text: This creature enters tapped. Set/Rarity: Innistrad: Crimson Vow common, Innistrad: Double Feature common Price: $0.27