I do not fight, I just spray my 'Reveal spray' on the shadow-tiger-cookie and grab it. I then put it the trusty old Void, BUT, My cookie cutter sharks are Void resistant after my little, ah, experiments, and they guard the cookie in the Void.
Void is immune to all magic, cannot be penetrated by anyone not slathered in my secret recipe of Void spray, of which the recipe is in my head, and there are no more existing canisters of it, and the Void can never, under any circumstances be destroyed, or it will rip apart time and space and cause there to be absolutely nothing - like before the Big Bang.

It must also be spelt with a capital V, or it will be offended and not let you in, even with Void spray.