The entire board shouldnt have shield counters all the time and the current proliferation package in the boxed precon is already pushing the limit of what wed allow homebrew decks to run
Pokemon Card - S&M: Crimson Invasion 18/111 - GYARADOS GX (holo-foil) (Mint) We Pay: $0.25 Pokemon Card - S&M: Crimson Invasion 18/111 - GYARADOS GX (holo-foil) (Mint) We Pay: $0.25 Requirements To sell us this card it must be the actual U.S
I think by and large, banning fast mana would do more to hurt fairer decks in this range than it would to stymie unfair ones, which I think can be said about most cards you can break in the format, but thats by the by
Even better, its patient when you need it to be
Box EV Breakdown At approximately $65 expected value per $150 box (~44% return), VSTAR Universe fares better than most modern sets thanks to its high guaranteed hit count and bonus pull chances
Build your team of cute critters, as you explore a procedurally-generated open world