Snubbull's fairy typing was a retroactive change that occurred with the introduction of the Fairy type in Pokmon X and Y, a mechanic that significantly altered the competitive landscape by offering a robust counter to Dragon and Dark types
Grading trading cards with American grading companies is less straightforward than it seems
In that case, you should include Trainers that help you search for Water Energy, such as Capacious Bucket, and Pokemon that can manipulate Energy, like Frosmoth, which allows you to attach Water Energy from your hand to your Benched Pokemon
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
Since Japanese Pokemon cards launch well in advance of the American versions, there are also some controversial designs that The Pokemon Company later chose to change