No clue about their origin in any other language
Spellslinger/Storm Spellslinger decks cast lots of Instants and Sorceries for value, using them to draw cards, remove threats, copy spells, make tokens, or slowly bury the table in triggers
Like most Pokmon cards, the value of Gengar depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Chilling Reign)
Also, in the case of trap cards, even if there are a lot of trap cards in the hand, the player never traps and only turns over two cards, so in the case of the Emperor Uriah deck or the Hamtteok deck, the viewer's stomach will explode
Its the spirit that counts
This trio works well together, naturally, but it also ties seamlessly into the gameplan of the deck as a whole