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'If a noncreature permanent under your control was destroyed this turn by a spell or ability an opponent controlled, you may pay {G} rather than pay this spell's mana cost....
'If a noncreature permanent under your control was destroyed this turn by a spell or ability an opponent controlled, you may pay {G} rather than pay this spell's mana cost....
'If a white creature is attacking, you may pay {B}{B} rather than pay this spell's mana cost. Exile target attacking creature. Create a token that's a copy of that creature....
'If an opponent cast a red instant or sorcery spell this turn, you may pay {W} rather than pay this spell's mana cost. Prevent the next 3 damage that a...
'If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost.
Exile any number of target spells.
'If you've been dealt damage by two or more creatures this turn, you may pay {R} rather than pay this spell's mana cost. Inferno Trap deals 4 damage to target...
'Target player reveals their hand and discards all Trap cards.
'If an opponent searched their library this turn, you may pay {0} rather than pay this spell's mana cost.
Target opponent mills thirteen cards.
EXTREME HEAT AHEAD! Melt through the snow and ice this December with a revamped Fire Kings Structure Deck! Intensify your Decks firepower with brand-new Monster, Spell, and Trap Cards that...
'If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost.
Exile any number of target spells.
'{2}, {T}: Tap target creature.
Each box contains 24 packs consisting of 7 cards. The flames of battle burn bright in Legendary Duelists: Soulburning Volcano! Turn up the heat until your opponent can’t stand it...