Where does this Goku drop from?

https://dbz.space/cards/1001750-goku-miraculous-return

He's a cool card, and I saw him in the Trunks strike and fought him multiple times, but he never dropped. He's not inactive so I assume he drops somewhere, but I would just like to know where.

(I tried asking the live chat, they were too bust with the musicbot :P)