Can't Launch Game After Patch

As title says, the game crashes upon startup. I’ve tried repairing, I’ve tried restarting. The same two things happen.

Either the Hearthstone logo will flicker like twice… then the game goes black screen, then crashes.

Or, the logo won’t even flash, and the game crashes.

Whatever is going on, it’s clearly some kind of bug that makes the game take WAY more GPU power than needed, because it makes my fans spin.

Please fix, I wanna play Quilboars before they’re nerfed.

Is the game down? I don’t even get a hearthstone logo, just goes straight to a black screen.