Budget Alternatives to Flare of Fortitude

Refraction Trap $0.03 3W · Trap If an opponent cast a red instant or sorcery spell this turn, you may pay {W} rather than pay thi... Lethargy Trap $0.08 3U · Trap If three or more creatures are attacking, you may pay {U} rather than pay this spell's mana cost. Rouse $0.16 1B · Instant If you control a Swamp, you may pay 2 life rather than pay this spell's mana cost. Thunderclap $0.16 2R · Instant You may sacrifice a Mountain rather than pay this spell's mana cost. Ramosian Rally $0.18 3W · Instant If you control a Plains, you may tap an untapped creature you control rather than pay this spell'... Mine Collapse $0.18 3R · Instant If it's your turn, you may sacrifice a Mountain rather than pay this spell's mana cost. Mind Swords $0.19 1B · Sorcery If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Outbreak $0.19 3B · Sorcery You may discard a Swamp card rather than pay this spell's mana cost. Crash $0.23 2R · Instant You may sacrifice a Mountain rather than pay this spell's mana cost. Downhill Charge $0.24 2R · Instant You may sacrifice a Mountain rather than pay this spell's mana cost. Dark Triumph $0.31 4B · Instant If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Invigorate $0.36 2G · Instant If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 ... Force of Virtue $0.37 2WW · Enchantment If it's not your turn, you may exile a white card from your hand rather than pay this spell's man... Flare of Cultivation $0.75 1GG · Sorcery You may sacrifice a nontoken green creature rather than pay this spell's mana cost. Flare of Duplication $1.90 1RR · Instant You may sacrifice a nontoken red creature rather than pay this spell's mana cost.