At Heritage Auctions last Comics & Comic Art event, this never-been-opened Pokmon First Edition Base Set Booster Box from 1999 sold for a handsome $408K USD
You need to tap it and discard a card, which isnt great just to draw a card, but it at least allows you to get rid of any dead weight and replace it with something potentially better, and since Anje has haste you can do so the turn you cast it
The higher the tier, the better the chances that the pack will contain high-value cards
Proving to be a menace in Modern, Pioneer, and Standard, this consistency didnt make an interesting metagame
Mono U could likely support a rare mill deck (Ruin Crab, Maddening Cacophony, Field Research, Glacial Grasp, blockers like Skyclave Squid to fill the curve, etc), though most Mono-Blue inclined decks will likely just end up UB
Forcing your opponent to sacrifice can be powerful as it gets around hexproof, indestructible, and protection