Below you will find several of the most powerful Limited archetypes in War of the Spark with a few examples of their best representative cards
If the copied enchantment is a token, the new token that's created copies the original characteristics of that token as stated by the effect that created the token
You're much more likely to open multiple rares in Set Boosters than in Draft Boosters
If you ask any Standard player right now, they would probably tell you that Sultai is a nice deck, but loses badly to Mono Red, which makes it unplayable
That being said, you can make it a little less omnipotent
For context on just how under the radar Brainstorm was, heres the eventual champion and shortlist Hall of Fame candidate, Justin Garys U/R list from that same event: Creatures (12) Lands (22) Spells (26) 2 Nevinyrral's Disk 4 Counterspell 4 Dissipate 4 Force of Will 3 Earthquake 3 Disintegrate 2 Incinerate 2 Serrated Arrows 2 Binding Grasp Sideboard Super rad deck, to be sure, but definitely could have benefited from a playset of Brainstorms