The idea of Black Mage Aggro is to make a ton of Black Mage tokens and cast multiple noncreature spells to make them deal damage, so you never even need to attack your opponent to beat them
Boomer Scrapper remains useful in this iteration because it gains +1/+1 counters whenever creatures leave the battlefield, which includes when you exile myriad tokens
Historically, the Color has been more focused on destroying Artifacts than on working with them
This may change what effects can apply to them
Whites a color big on Enchantments, so the argument that more white Enchantress cards would break it to me falls short, especially when it comes to EDH and the relative clunkiness of temporary enchantment based removal (pro tip: its not very good)
There are no fewer than three decks on sale for the set right now, but arguably the easiest recommendation is Food and Fellowship