Name: Horizon Seed Cost: 4W Type: Creature -- Spirit Pow/Tgh: 2/1 Rules Text: Whenever you cast a Spirit or Arcane spell, regenerate target creature. Set/Rarity: Champions of Kamigawa uncommon, Salvat 2005 uncommon Price: $0.19

Name: Horizon Stone Cost: 5 Type: Artifact Rules Text: If you would lose unspent mana, that mana becomes colorless instead. Set/Rarity: Magic Online Promos rare, Commander Legends rare Price: $1.74

Name: Horizon of Progress Type: Land Rules Text: {T}, Pay 1 life: Add one mana of any type that a land you control could produce. {3}, {T}: You may put a land card from your hand onto the battlefield tapped. {1}, {T}, Sacrifice this land: Draw a card. Set/Rarity: Modern Horizons 3 Commander rare Price: $1.49

Name: Horn of Deafening Cost: 4 Type: Artifact Rules Text: {2}, {T}: Prevent all combat damage that would be dealt by target creature this turn. Set/Rarity: Legends rare, Chronicles Foreign Black Border rare, Chronicles rare, Masters Edition IV uncommon Price: $0.37

Name: Horn of Gondor Cost: 3 Type: Legendary Artifact Rules Text: When Horn of Gondor enters, create a 1/1 white Human Soldier creature token. {3}, {T}: Create X 1/1 white Human Soldier creature tokens, where X is the number of Humans you control. Set/Rarity: Tales of Middle-earth Promos rare, The Lord of the Rings: Tales of Middle-earth rare Price: $2.23

Name: Horn of Greed Cost: 3 Type: Artifact Rules Text: Whenever a player plays a land, that player draws a card. Set/Rarity: Stronghold rare, Conspiracy: Take the Crown rare, Secret Lair Drop rare, Marvel Universe mythic Price: $18.01

Name: Horn of Plenty Cost: 6 Type: Artifact Rules Text: Whenever a player casts a spell, they may pay {1}. If the player does, they draw a card at the beginning of the next end step. Set/Rarity: Mercadian Masques rare Price: $0.65

Name: Horn of Valhalla Cost: 1W Type: Artifact -- Equipment Rules Text: Equipped creature gets +1/+1 for each creature you control. Equip {3} [Related to Ysgard's Call.] Set/Rarity: Battle for Baldur's Gate Promos rare, Commander Legends: Battle for Baldur's Gate rare, Alchemy Horizons: Baldur's Gate rare Price: $0.53

Name: Horn of the Mark Cost: 2 Type: Legendary Artifact Rules Text: Whenever two or more creatures you control attack a player, look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. Set/Rarity: Tales of Middle-earth Promos rare, The Lord of the Rings: Tales of Middle-earth rare Price: $0.65

Name: Hornet Cannon Cost: 4 Type: Artifact Rules Text: {3}, {T}: Create a 1/1 colorless Insect artifact creature token with flying and haste named Hornet. Destroy it at the beginning of the next end step. Set/Rarity: Stronghold uncommon, Duel Decks: Phyrexia vs. the Coalition uncommon Price: $0.15

Name: Hornet Harasser Cost: 2BB Type: Creature -- Goblin Shaman Pow/Tgh: 2/2 Rules Text: When this creature dies, target creature gets -2/-2 until end of turn. Set/Rarity: Lorwyn common Price: $0.09

Name: Horobi's Whisper Cost: 1BB Type: Instant -- Arcane Rules Text: If you control a Swamp, destroy target nonblack creature. Splice onto Arcane--Exile four cards from your graveyard. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.) Set/Rarity: Betrayers of Kamigawa common, Modern Masters uncommon Price: $0.10

Name: Horobi, Death's Wail Cost: 2BB Type: Legendary Creature -- Spirit Pow/Tgh: 4/4 Rules Text: Flying Whenever a creature becomes the target of a spell or ability, destroy that creature. Set/Rarity: Champions of Kamigawa rare, Multiverse Legends rare Price: $0.33

Name: Horrible Hordes Cost: 3 Type: Artifact Creature -- Spirit Pow/Tgh: 2/2 Rules Text: Rampage 1 (Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.) Set/Rarity: Mirage uncommon Price: $0.23

Name: Horrifying Revelation Cost: B Type: Sorcery Rules Text: Target player discards a card, then mills a card. Set/Rarity: Mirrodin Besieged common Price: $0.06

Name: Horror of Horrors Cost: 3BB Type: Enchantment Rules Text: Sacrifice a Swamp: Regenerate target black creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) Set/Rarity: Legends uncommon, Ninth Edition uncommon, Salvat 2005 uncommon Price: $0.20

Name: Horror of the Broken Lands Cost: 4B Type: Creature -- Horror Pow/Tgh: 4/4 Rules Text: Whenever you cycle or discard another card, this creature gets +2/+1 until end of turn. Cycling {B} ({B}, Discard this card: Draw a card.) Set/Rarity: Amonkhet common, Masters 25 common, Amonkhet Remastered common Price: $0.08

Name: Hospital Room Cost: 3W Type: Enchantment -- Room Rules Text: Whenever you attack, put a +1/+1 counter on target attacking creature. (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.) [This is half of the split card Surgical Suite // Hospital Room.] Set/Rarity: Duskmourn: House of Horror uncommon Price: $0.14

Name: Hostile Desert Type: Land -- Desert Rules Text: {T}: Add {C}. {2}, Exile a land card from your graveyard: This land becomes a 3/4 Elemental creature until end of turn. It's still a land. Set/Rarity: Hour of Devastation rare, Hour of Devastation Promos rare, Commander 2020 rare, Murders at Karlov Manor Commander rare Price: $0.18

Name: Hostile Hostel Type: Land Rules Text: {T}: Add {C}. {1}, {T}, Sacrifice a creature: Put a soul counter on this land. Then if there are three or more soul counters on it, remove those counters, transform it, then untap it. Activate only as a sorcery. [Front face. Transforms into Creeping Inn.] Set/Rarity: Magic Online Promos mythic, Innistrad: Midnight Hunt mythic, Innistrad: Midnight Hunt Promos mythic, Innistrad: Double Feature mythic Price: $0.47