Although many TCGs like Pokmon and Yu-Gi-Oh
Even if they require a tribute for their Summon, the effects they carry make them worth it
Gamma White - Alpha, Beta, Gamma Playtest cards Gamma Blue - Alpha, Beta, Gamma Playtest cards Gamma Black - Alpha, Beta, Gamma Playtest cards Gamma Red - Alpha, Beta, Gamma Playtest cards Gamma Green - Alpha, Beta, Gamma Playtest cards Gamma Gold - Alpha, Beta, Gamma Playtest cards Gamma Artifact - Alpha, Beta, Gamma Playtest cards Gamma Basic Lands - Alpha, Beta, Gamma Playtest cards Others - Alpha, Beta, Gamma Playtest cards MISSING SOURCES (Artifact, Blue, Black) - Alpha, Beta, Gamma Playtest cards MISSING SOURCES (Red, Green, White, Basic Land) - Alpha, Beta, Gamma Playtest cards
The only reason to play Mermaid Shimmer over Smokey Spirits is if you are running a torrential river deck, in which case the draw and damage dealing from Torrential River might make Mermaid Shimmer worth it over Smokey Spirits
Outside this case, down payments are generally non-refundable should the customer choose to cancel the order
Mechanics : Certain sets, such as Neo Revelation or Astral Radiance, have introduced their own rules for shiny cards
