If Korean cards do indeed become as big as their Japanese and English counterparts years from now: we'd just like to say "we called it first"
Given their growing demand and scarce supply, investing in ultra-rare Pokmon cards could be profitable
Agatha's Champion's fight effect is ideal to either destroy a would-be blocker or take out a small creature with relevant abilities, or dispatch a flier that the green deck can't easily block
Blue-Eyes White Dragon remains relevant today thanks to support from the Primite archetype, which incentivizes the use of powerful Normal Monsters
Last year, a 1995 Pokemon Japanese Topsun Charizard Blue Back card, also with PSA 10 Gem Mint grading, sold for $493,230 by Goldin Auctions.
If the market price for a first-edition copy is a bit out of your budget, you can aim for an LP copy instead, which will likely cost you less than $50