This makes sense: each additional color gives you an additional way to advance your gameplan and interact with the board
The deck list may look a little light on instant and sorcery spells , but when you have game-changing cards like Inkshield at your disposal, in addition to enchantment auras that do a fantastic job of making your creatures more powerful, or even help deal with some of your opponents' threats, you won't miss those spell cards at all
If these games go really slow, then some of these might be good at breaking those stalled boards, especially this Crystal
Whiplash, Vengeful Engineer An interesting card for aggressive black decks, Whiplash, Vengeful Engineer could certainly fit Modern Horizons 3 s black-red artifacts theme
I've heard many stories of stores ordering one type of booster and receiving another (which may be due to inventory issues rather than confusion)
Like any skill-based activity: the more you do it, the more you learn