Changes

* This card is good for can be [[Searcher|searched]] by "[[Dark MagicianRogue of Endymion]]", "[[Watch Cat]]" decks, since you can use powerful effects like "[[Diffusion Wave-MotionWatch Dog]]" and , "[[Dark Magic CurtainThe Despair Uranus]]" without having to pay any , and other [[Life PointsList of generic searchers#Spells|generic searchers]].

* This card works well with many combos, is good for example:** "[[Spell EconomicsDark Magician]]+[[Abyssal Designator]]+[[Autonomous Action Unit]]** [[Spell Economics]]+[[My Body as a Shield]]** [[Spell Economics]]+[[Brain Control]]** [[Spell Economics]]+" Decks, since you can use powerful effects like "[[Instant FusionDiffusion Wave-Motion]]** " and "[[Spell EconomicsDark Magic Curtain]]+" without having to pay any [[Synchro ControlLife Points]].

* Combo with "[[Abyssal Designator]]" first, then "[[Autonomous Action Unit]]". ==List of all == * [[Spell Card]]s that require a paying Life Points when activated: (Note that cards that use the amount of LP paid as part of their effect, such as "[[CostStar Blast]] of " and "[[PayPsychic Blade]]ing Life Points: ", cannot be activated while "Spell Economics" is on the field.) {{#askCard query|[[Card type: :Spell Card]] [[Life PointsLP::Pays Life Points for cost]] [[Class 1::Official]] [[Attribute::Spell]] |?Card Typemedium=official}}