Most boss monsters that see competitive play at least have immunity to destruction effects or immunity to targeting, which makes them much harder to get rid of once they hit the field compared to other monsters
Apparently, things were worse than I knew: As a group, decks using companions have too high of win rates and metagame share in Standard, Pioneer, and Modern, and have already necessitated bans in Legacy and Vintage
This, perhaps combined with the Giovanni Supporter card, can knock out many other ex cards
With the Pokmon TCGs resurgence in popularity during the 2020s, driven by nostalgia and media attention, vintage-era products like this have gained renewed interest and valuation, coinciding with major franchise milestones like the upcoming 30th anniversary in 2026
#19 Making cards "to order" definitely solves the issue of scalpers, but selling direct to consumer does hurt the retail stores which are the backbone of the community - whether here or in Japan