I like it and also think the concept is due to some obscure and honestly unintuitive rules. That said maybe going for the traditional storm build with this slotted in could work better. That way you don't go down to 1 win con. You still have grapeshot and warrens but 1 or 2 of these to also help in matches where shot isn't the best card for the job.
I see you have kinda done that already, but maybe instead of playing Val you could play Boral or electromancer? I don't think you have to lose the package of Gifts and the flashback card to add in this new card.
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