Alternative full art cards have been around since Pokmon TCGs Sun & Moon era, but the cards released under those sets were all alternate versions of GX cards
Amethyst/Ruby can be useful for control decks focused on maintaining sway over the board, while a good Emerald/Steel build tends to angle for weakening an opponent by depleting their resources through discard abilities
Theyre special, rare, and will probably be extremely expensive if they ever come to market
Generally, ST11-001-uta players pick one of these as their big threat in the deck: OP04-031-donquixote-doflamingo, OP06-118-roronoa-zoro, OP01-051-eustasscaptainkid-701, P-061-monkeydluffy, and OP06-035-hody-jones
It would be excellent in a Simic lands-matter deck, like Tatyova, the Benthic Druid or Aesi, Tyrant of Gyre Strait
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