Splinter Twin is probably the one with the most traction re: Twitter buzz, but it was banned because it invalidated a lot of linear strategies
Several factors influence how valuable a card becomes: Rarity and print run Condition and grading Popular Pokemon characters Limited editions Collector demand Vintage cards, PSA graded cards, and sealed products often hold the highest value
These are Topps trading cards produced for Pokemon the Movie 2000, the second animated Pokemon film, which prominently features Lugia
Id go as far as to say that the best possible deck you can get in Scars of Mirrodin Limited is an infect deck, though R/W Metalcraft is still a much more reliably good deck in general
So for example, this card can use the attacks of Dialga GX or Lugia GX when you play this card
Cloyster takes 20 additional damage from Lightning-type attacks