It starts small and dies to almost all removal spells, but you can quickly build an army of creatures with +1/+1 counters if you keep sacrificing permanents
Exile two cards from your hand
This main deck has exactly 50 cards, which seems to be the best composition
Space-Time Smackdown offers only two viable tools: Rocky Helmet and Giant Cape, with the latter being the more competitive option
Mew VMAX SA (128,000 / ~$908) commands a premium for three reasons: (1) the AKIRA EGAWA illustration is widely considered one of the most visually striking SA cards of the Sword & Shield era, (2) Mew VMAX was the centerpiece of the dominant Fusion Strike competitive archetype, cementing its place in TCG history, and (3) the pull rate (~1/16 boxes) keeps individual card supply scarce even years after release
I think of it as a piece of Magic history, so I'm happy it was able to stay in Foundations