NessPlayers registering the January 2022 Remote Duel YCS will get a playmat featuring Amabie, as well as the Amabie promo card, even if they didn't register for the in-person YCS Pasadena.
As for the prizes of the ATTACK OF THE GIANT CARD!! event, the following cards from The Grand Creators will be featured:
Ukiyoe-P.U.N.K. Amazing Dragon
Water Enchantress of the Temple
Source and other details in the event FAQ.