I would just lose my artifact, the dervish wouldn't be able to kill me because shroud stays in the enemy turn. His only chance to win was to use a dispell in my general, but we are talking about Vetruvian here, kek.
Here's the full match if you want to take a look.
EDIT: Sorry, my mistake. The screenshot shows the end of my turn. I don't had shroud cast on me yet, so if my oponent had managed to cast a rasha's curse it would be gg indeed. It's just after this turn that he doesn't have any chance to win without a dispell.