nonamethanks said:
Hate to say this, but to be fair Fate character tags DID set a precedent on this...
This also reminds me that we used to have various tags with qualifiers for Pokémon human characters, like "red_(pokemon)_(remake)".
However, these tags for human characters often varied solely based on copyrights, so they were deleted. Red looks different in RGBY, FRLG, SM, Masters, Special (manga) and other copyrights, but we can search, say, red_(pokemon) pokemon_frlg so we don't need a specific tag for FRLG!Red. I helped to delete these tags for human characters at some point.
At least in my opinion, these tags for Pokémon species like giratina (origin) are better. As we know, Giratina doesn't vary by copyright. It can equally have the Origin Forme and Altered Forme in various games, as well as the manga and anime.