Name: Heartfire Hero Cost: R Type: Creature -- Mouse Soldier Pow/Tgh: 1/1 Rules Text: Valiant -- Whenever this creature becomes the target of a spell or ability you control for the first time each turn, put a +1/+1 counter on it. When this creature dies, it deals damage equal to its power to each opponent. Set/Rarity: Bloomburrow uncommon Price: $0.29

Name: Heartfire Immolator Cost: 1R Type: Creature -- Human Wizard Pow/Tgh: 2/2 Rules Text: Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) {R}, Sacrifice this creature: It deals damage equal to its power to target creature or planeswalker. Set/Rarity: Core Set 2021 uncommon, Foundations uncommon Price: $0.03

Name: Hearthfire Hobgoblin Cost: {R/W}{R/W}{R/W} Type: Creature -- Goblin Soldier Pow/Tgh: 2/2 Rules Text: Double strike Set/Rarity: Eventide uncommon, Planechase uncommon, Modern Masters 2015 uncommon Price: $0.04

Name: Hearts on Fire Cost: 1R Type: Instant Rules Text: One or two target creatures each get +2/+1 until end of turn. Set/Rarity: Foundations Jumpstart common Price: $0.07

Name: Heir to Dragonfire Cost: 1R Type: Creature -- Human Warlock Pow/Tgh: 2/2 Rules Text: {R}: Heir to Dragonfire gets +1/+0 until end of turn. {2}{R}, Reveal Heir to Dragonfire from your hand: Heir to Dragonfire perpetually becomes a Dragon, gets +3/+3, and gains flying. Set/Rarity: Alchemy: Wilds of Eldraine rare Price: ???

Name: Hellfire Cost: 2BBB Type: Sorcery Rules Text: Destroy all nonblack creatures. Hellfire deals X plus 3 damage to you, where X is the number of creatures that died this way. Set/Rarity: Legends rare, Masters Edition III rare Price: $105.19

Name: Hellfire Mongrel Cost: 2R Type: Creature -- Elemental Dog Pow/Tgh: 2/2 Rules Text: At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, this creature deals 2 damage to that player. Set/Rarity: Zendikar uncommon, Duel Decks: Ajani vs. Nicol Bolas uncommon Price: $0.07

Name: Honden of Cleansing Fire Cost: 3W Type: Legendary Enchantment -- Shrine Rules Text: At the beginning of your upkeep, you gain 2 life for each Shrine you control. Set/Rarity: Champions of Kamigawa uncommon, Eternal Masters uncommon, Historic Anthology 3 uncommon Price: $4.29

Name: Inner Fire Cost: 3R Type: Sorcery Rules Text: Add {R} for each card in your hand. Set/Rarity: Saviors of Kamigawa common Price: $0.39

Name: Into the Fire Cost: 2R Type: Sorcery Rules Text: Choose one -- - Into the Fire deals 2 damage to each creature, planeswalker, and battle. - Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one. Set/Rarity: March of the Machine Promos rare, March of the Machine rare Price: $0.18

Name: Invoke the Firemind Cost: XUUR Type: Sorcery Rules Text: Choose one -- - Draw X cards. - Invoke the Firemind deals X damage to any target. Set/Rarity: Guildpact rare, Duel Decks: Izzet vs. Golgari rare, GRN Guild Kit rare Price: $0.30

Name: Iroh, Firebending Instructor Cost: 2R Type: Legendary Creature -- Human Noble Ally Pow/Tgh: 2/2 Rules Text: Whenever Iroh attacks, attacking creatures get +1/+1 until end of turn. Set/Rarity: Avatar: The Last Airbender Eternal uncommon Price: $0.89

Name: Jaya's Firenado Cost: 4R Type: Sorcery Rules Text: Jaya's Firenado deals 5 damage to target creature or planeswalker. Scry 1. (Look at the top card of your library. You may put that card on the bottom.) Set/Rarity: Dominaria United common, Foundations Jumpstart common Price: $0.04

Name: Jaya, Venerated Firemage Cost: 4R Type: Legendary Planeswalker -- Jaya Loyalty: 5 Rules Text: If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead. [−2]: Jaya deals 2 damage to any target. Set/Rarity: Magic Online Promos uncommon, War of the Spark uncommon, War of the Spark Promos uncommon, Secret Lair Drop uncommon, The List uncommon Price: $0.14

Name: Jetfire, Air Guardian Type: Legendary Artifact -- Vehicle Pow/Tgh: 3/4 Rules Text: Living metal (During your turn, this Vehicle is also a creature.) Flying {U}{U}{U}: Convert Jetfire, then adapt 3. (If it has no +1/+1 counters on it, put three +1/+1 counters on it.) [Back face. Transforms from Jetfire, Ingenious Scientist. U color indicator.] Set/Rarity: Transformers mythic Price: $0.78

Name: Jetfire, Ingenious Scientist Cost: 4U Type: Legendary Artifact Creature -- Robot Pow/Tgh: 3/4 Rules Text: More Than Meets the Eye {3}{U} (You may cast this card converted for {3}{U}.) Flying Remove one or more +1/+1 counters from among artifacts you control: Target player adds that much {C}. This mana can't be spent to cast nonartifact spells. Convert Jetfire. [Front face. Transforms into Jetfire, Air Guardian.] Set/Rarity: Transformers mythic Price: $0.78

Name: Kami of Fire's Roar Cost: 3R Type: Creature -- Spirit Pow/Tgh: 2/3 Rules Text: Whenever you cast a Spirit or Arcane spell, target creature can't block this turn. Set/Rarity: Champions of Kamigawa common Price: $0.12

Name: Keldon Firebombers Cost: 3RR Type: Creature -- Human Soldier Pow/Tgh: 3/3 Rules Text: When this creature enters, each player sacrifices all lands they control except for three. Set/Rarity: Prophecy rare Price: $2.27

Name: Know Naught but Fire Type: Scheme Rules Text: When you set this scheme in motion, it deals damage to each opponent equal to the number of cards in that player's hand. Set/Rarity: Archenemy Schemes common Price: $12.93

Name: Kor Firewalker Cost: WW Type: Creature -- Kor Soldier Pow/Tgh: 2/2 Rules Text: Protection from red Whenever a player casts a red spell, you may gain 1 life. Set/Rarity: Magic Online Promos uncommon, DCI Promos rare, Worldwake uncommon, Magic Online Theme Decks uncommon, Masters 25 uncommon, The List uncommon Price: $0.10