yugioh new dragon cards THEY ARE BACK ICv2: 'Yu-Gi-Oh! TCG' Turns Up

It was designated as a restricted card in the April 2000 ban, the second ban in Yu-Gi-Oh history, and the restrictions have never been relaxed, and it is the card restricted for the longest period in OCG

It really wants your opponents to mill a bunch of cards, but most of the mill is tied to Anowon, the Ruin Thief, which additionally requires you to have some board presence

You can get a near-mint copy at around $20 for near-mint copies in the US market and that's in spite of it this version of Cloud being a good, but definitely not amazing, card

With this in mind, it seems pretty unlikely that many of the rares and mythics from Unstable will be worth a significant amount of money