yugioh drytron cards CoreTCG but destroy it during the End Phase Drytron Alpha Thuban | Card

It was only available inside random booster packs of the SV5a Crimson Haze series that was released in Japan, in March, 2024

My guess is it's a random speculative buyout, with someone(s) betting that the cheap extra turn effect is under-priced at $2 and/or will be broken and in demand at some point in the future (unlike today where it sees play in 1% of Commander decks according to EDHRec)

The address may vary based on the shipping carrier you are using

Both the Secret Lair x Post Malone: Backstage Pass and Secret Lair x Post Malone: The Lands will be available as part of the October Superdrop, which will be available to preorder from the 17th of October