Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
Overall, Energy Acceleration is crucial for a wide variety of decks, and Sparkling Crystal is an amazing workaround for decks that can't perform this task naturally
Thats pretty wild by todays standards
Defense: One creature with Banding and any number of creatures without Banding may block as a band i.e
Mabel, Heir to Cragflame Mice might not be the most common creature type in Magic, but Mabel, Heir to Cragflame has plenty of utility beyond its creature typenamely its equipment, Cragflame
I'll use two-color cards as examples, as they're nice and straightforward