I’ll put it on my TODO list.
For these Pokémon specific lists I usually do the following:
- I go to the Bulbapedia TCG page, i.e. Cosmog TCG. Then I open each individual link in the card column and look at the release information for all English and Japanese variations of a card.
- I add card variations I know to exist but which aren’t mentioned on Bulbapedia (i.e. ©1999-2000 variations of Base Set and Fossil Set; Australian Jungle set; Expedition Base Set MATCHPRINT cards; different EX era codes; etc. etc.)
- I then go to the Bulbapedia Error Cards page and Ctrl+F for the Pokémon to see if there are any errors (which also have a corrected version available).
- Then I go to the Jumbo Cards page and Unnumbered Japanese Cards page and Ctrl+F there as well.
- Then I open each individual World Championship Deck page and Ctrl+F there as well.
And in between (one set at a time) I also add all foreign cards. I usually look at en.pokemoncardmarket.eu at the specific cards, or the cards from the same set, and see if there are any cards in French/German/Italian/Spanish/Portuguese for sale. Based on older lists (especially my own collections) I know for most of the sets in which languages they are released by now.
For Korean cards I then first search for the Pokémon + KTCG on Bulbapedia (i.e. Cosmog KTCG), and open each indiviaul link and Ctrl+F again. Sometimes I also look on eBay if I can find any singles for that Pokémon, although that usually only works with popular Pokémon like Venusaur or Charizard, since there aren’t a lot of Korean cards for sale usually. Searching for the Japanese set name + korean as search term sometimes gives me Korean products as search results that aren’t mentioned on Bulbapedia (I think only the Korean-exclusive sets are mentioned on Bulbapedia, not the ones that are the same as their Japanese counterparts).
And then the list is done, and I put it in my google drive and link it to the collector that requested it.
As for what you state, all cards with Imakuni? in the artwork, that’s a bit tougher. If I search for Pokémon in an artwork I usually use this list I once created and check each artwork individually for the Pokémon. And I usually look at all trainer cards in my own 7,000+ card collection.
But here are the English and Japanese cards with Imakuni? in the artwork I could find just now (17 in total):
- Imakuni?'s Doduo and Imakuni?'s Doduo: two Japanese variations (original Glossy promo and CP6 reprint); one English variations (XY Evolution non-Holo Secret Rare)
- Imakuni?'s Whismur: one Japanese variation (promo)
- Imakuni?'s Loudred: one Japanese variation (promo)
- Imakuni?'s Exploud ex: one Japanese variation (promo)
- Imakuni?: three Japanese variations (original Glossy promo; EX Battle Boost reprint Reverse Holo; BREAK Starter Pack reprint); two English variations (XY Generations non-Holo; XY Generations Reverse Holo)
- Lose?: one Japanese variation (Vending Series 3 Green)
- Imakuni?'s PC: one Japanese variation (Vending Series 3 Green)
- Imakuni?'s Nasty Plot: one Japanese variation (Vending Series 3 Green)
- Imakuni?'s Corner: one Japanese variation (Vending Series 3 Green)
- Dance! Neo Imakuni?: one Japanese variation (promo)
- Shining Imakuni?: one Japanese variation (promo)
Greetz,
Quuador