*Moved to the right section*
Hello, to answer your question, you need to buy a Pixel Game Card, and use it on this specific site to spend it on Eden Eternal Classic
https://ee.classic.vendettagn.com/donate.vgn
But if you buy some for your quest, I want to point out that you can have your item in the Welcome Starter Pack of the classic, which is on the same link, in the Events category.
Happy New Year!