In pauper, you have the option of running
preordain,
ponder, and
brainstorm in the mono blue delver decks. Those decks have no shuffle effects (outside of the shuffle effect if you pair
brainstorm with
ponder, which I have tried and discarded as being poor).
I consider
ponder to probably be the independently strongest of the blue cantrip effects, though
ponder vs.
preordain will probably be a debate that never ends. The big advantage of
ponder is that it gives you a lot more control when searching for a specific card: you get to dig 3 and if you whiff, you have a shot on the redraw.
Preordain, on the other hand, only lets you see 2 cards ever, and than decide if you want to gamble on a 3rd. Its just less information.
Brainstorm without a shuffle or self-mill is the undisputed worst of the options. You are pretty much priced into using it as an EOT spell, rather than as a mainphase spell like in legacy, which makes it so much worse (this is one of the numerious problems with trying to pair it with expanse/evolving wilds, to the point I wouldn't even count those shuffle effects in a % breakdown). Even with
thought scour I am not a big fan, because of the mana investment. Where as with
ponder or
preordain, they can be a lategame topdeck to main phase in the hopes of eventually drawing out of a bad situation. Brainstorm is a lot worse in those situations, as a certain % of the time it just locks you out of further draws, and effectively ends the game.
I can see why people like the card, I just think it has a lot of warts in cube that get swept under the rug.