That was my sideboard 2 weeks ago. I just swapped over to try this. I'm pretty sure I'm going to cut back down to 2
Mindbreak Traps but I want to actually draw it before I make that decision.
I'm not sure where you got that Thalia "isn't very good" against storm, but if it hasn't panned out for you as it has for me I suggest giving her another run. Ever since her release I've been very happy with her as tech against all combo decks, up to and including storm. I was running
Thorn of Amethyst back then and it was good, she's just better than that.