For the longest, perhaps still even now, Chandra was the most impactful of impulse draw cards
Right now, Stock Up is seeing a little bit of play in all sorts of different formats and decks, which seems like a good indication of its overall playability
Before the works of these three deckbuilding geniuses who are all among the greatest the game has ever seen, players would frequently pack their decks with so many creatures, even when playing control. The idea of making every card in your deck dedicated to the sole purpose of not dying was a radically different paradigm
The card was also the origin of the flash keyword used in today's magic, which allows players to cast creatures at instant speed
It isn't amazing compared to what blue or black can do, but it's a draw that can be repeated multiple times a turn, something white seldom does
I dont even have specific reasons for not liking it, but nothing jumped out at me as something to build around