Its good to suss out where Magics history has its gaps or has its old cards that are really weird. As card and deck design unfolded, the Commander team sought to replace some of the classic group slug enablers with cards that would be easier to manage for the decks players, as well as their opponents
Cards can get banned for various reasons
So, even a modest increase in VSTAR card values within a year hints at the promising potential in the next five to ten or even 20 years
A [+1] cost on a loyalty ability, for example, effectively has a cost of "increase enchanted creature's toughness by 1," though it still counts as a loyalty ability
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
Sozin used it in his campaign of conquest, leading to the destruction of the Air Nomads, and a century later Fire Lord Ozai attempted to do the same