You can target 1 Polymerization Spell or Fusion Spell in your GY; place that card on the bottom of the Deck, then draw 1 card. When another card, or its effect, is activated (Quick Effect): You can banish 1 Polymerization Spell or Fusion Spell from your GY, then target 1 card on the field; destroy it. You can only use each effect of Magnum the Reliever once per turn.