Take Think Twice as an example, a card you can readily purchase for a few cents but the Traditional Foil Japan Showcase printing can be worth upwards of $20 with a further multiplier if the card is a Fracture Foil
Flusterstorm is outstanding in this matchup as its an insane counterspell when it comes to protecting those precious fetchlands from Stifle (theres always the dream of catching more than just one spell with it too)
I will be going through each of these cards, explaining what they do, combos and giving you an example deck list
Its fanbase is genuinely global, but the origin culture is Japanese, the manga and anime are consumed in Japanese first, and the collector community that has been deepest in this hobby from the very start (the most nostalgic), the community that was buying OP-01 at launch price and understands the IP at its deepest level, is largely Japanese or Japanese-market adjacent
Merfolk is a good one, Wizards can go mono blue (Patron Wizard), loads of combo decks and artifact ramp decks are also fine to be mono blue for
immediately after this effect resolves, Link Summon 1 DARK Link Monster using only this card you control and that opponent's monster as material