Haha, a hero? That sounds like a big title!
To be honest, I'm still very new to the chip and card world. Most people in Japan (including myself!) would find it hard to believe that Nintendo or Angel cards are so highly valued overseas. Here, international brands like Copag or KEM are actually seen as more "premium" and rare.
Because of that, I never really paid much attention to domestic cards. I didn't realize Angel Bridge Jumbo was such a "Grail" for you guys! But now that I know, I'll definitely keep my eyes open for them. If I happen to find a secret route in the Japanese market, I'll let you know!