What I can do is estimate what happens to the format next
Throughout the series, Onix has been a recurring sight, appearing in games like Pokmon Gold and Silver, where players could evolve it into Steelix using a Metal Coat, thereby increasing its strategic versatility
I broke this in Blue with Impulse effects that draw you to the top card of a set from your library and then stack the bottom and now you can draw that stacked card instead of never seeing it again barring a shuffle
The card is selling rather cheaply, with many players finding the card highly produced, and it seems to already be easier to obtain than the Pokmon GO Radiant Charizard
First, all players who don't control a Space Beleren (or another permanent with space sculptor, but come on) in turn order assign their creatures
As for the upcoming expansion, you can still preorder single Chaos Rising Booster Packs for $12.99 at Amazon