This surge has forced many retailers to limit purchases to one item per person in an attempt to curb both chaotic drops as well as secondary-market prices
Instead, it was very wisely retired, only making a little cameo in Time Spiral and Planar Chaos with Slipstream Serpent and Bog Serpent, respectively
I have no idea how it can be particularly oppressive, but it was better than you expected because you have a knack for making it work
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
For example, both sets have the same number of single-faced and double-faced commons (90 SFC/10 DFC), uncommons (60/23), rares (53/11), and mythic rares (15/5)