Chimera triggers in the GY, allowing a fourth Cyberdark Monster to be sent from the Deck to the GY
The holo sits across the artwork window in the flat foil pattern of the period, not the cosmos or textured foils that came later
However, if youre playing a sacrifice deck with Green as part of its identity, though, you should definitely be using Primal Growth
The most famous deck that uses Float Stone BKT 137 is the Ultra Necrozma CEC 164 Garbodor BKP 57 deck, which with its Garbotoxin ability, if it is attached to any tool, it cancels out Pokmon abilities that are in hand, in play, and in the discard pile of all players
Deep Pocket Monster also warned fans from buying the fancy binders with a hard shell and zipper case as they can often have cheap O-ring spines
But in doubt the flashlight test is a pretty good indication of which is which (if you have both of them to compare)