2016 Japanese Battle Festa Pikachu - 20th Anniv - Market - Elite

Hey everyone! So I’m looking for any info that people have on why this card in particular is reaching the prices it has recently. It was not a difficult card to get, there’s almost 800 pop in PSA 10, yet recently market value is around 2m JPY and Japanese market is pricing it around 2.5-2.9m JPY. I’ve been scouring the internet but simply can’t find what is causing this boom, which seems to be more pronounced than other non-waifu cards. Pic of my copy for reference.

Pokemon Japanese 2016 XY Promo 20th Anniversary Festa #279 Pikachu Holo PSA 10

Auction Prices Realized Tcg Cards 2016 Pokemon Japanese XY Promo Pikachu-Holo 20TH ANNIVERSARY FESTA

Pokemon, Scratchpad

2016 Pokemon Japanese XY Black Star Promo 20th Anniversary Festa Participation Prize Full Art Holofoil #279/XY-P Pikachu – BGS PRISTINE/Black Label 10 – Pop 4 on Goldin Auctions