Shining Gyarados, Shining Magikarp and the rest of the lineup still stand out because they feel different from standard holos of the era
Excellent question
While this card has Xyz Material, monsters your opponent controls cannot target Gemini monsters you control for attacks, also your opponent cannot target Gemini monsters you control with card effects
(Regular Art Card found in 30% of packs Foil-stamped Signature Art Card in 5%.) Every pack includes a combination of 14 cards of rarity Rare or higher and 36 Uncommon, 69 Common, and 1 Land cards (Full-Art Land in 33% of packs)
Perhaps even stronger is Terrorstrike Dragon Stock Buster, which lets you send one card from your hand to the graveyard if your opponent has five or more cards on the field to reduce all opposing monster ATK by 1500 until the end of the turn
Even though there's rarely more than a single Palatir in any given sideboard, Legacy is such an expensive format that Legacy players are willing to pay a lot for a fancy Palantir
