Since Y'shtola repeatedly damages each opponent, cards that trigger off noncombat damage such as Curiosity, Ophidian Eye, Tandem Lookout, Helm of the Ghastlord, and Sigil of Sleep are powerhouses that quickly take over the game
Oh, and youll draw an extra card too
The combination of sacrifice outlet and card draw makes it quite strong, and it only gets better once you start to exploit its ability to control the board
Unfortunately, I probably wont be attending League Cups this weekend due to Hurricane Irma, but I will be playing in Connecticut and Florida Regionals in a few weeks
Still, if you're playing against people who can't get her off the board fast, there's a lot of obnoxious life gain decks in Standard that might find her to be fun to mess around with