Demonfire [Ravnica Allegiance Guild Kit] Demon Set: Magician's Force Card type:

Set: Magician's Force Card type: Quick Play Spell Rarity: Rare Attack: 0 Defense: 0 During a Battle Phase

Set: Duel Overload Card type: Link/Effect Monster Rarity: Ultra Rare Attack: 400 2 monsters If this card is Link Summoned: You can send 1 "Destruction Sword" card from your Deck to the GY

According to merfolk legend

then you can Special Summon 1 "Fire Hand" from your Deck

Set: 2016 Mega-Tins Mega Pack Card type: Effect Monster Rarity: Ultra Rare Attack: 2600 Defense: 2300 This card's name becomes "Buster Blader" while it is on the field or in the Graveyard

Demonfire [Ravnica Allegiance Guild Kit] Demon Set: Magician's Force Card type:Set: Ravnica Allegiance Guild Kit Type: Sorcery Rarity: Rare Cost: {X}{R} Demonfire deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead. Hellbent If you have no cards in hand, this spell can't be countered and the damage can't be prevented.