Thor Takes on a Shocking New Form ✖ Marvel's God of Thunder has definitely been put to the test over the years, going up against foes that require him to use his powers in some unexpected ways. That was especially the case for the recently-released Thor #13, which saw Thor being put to the test against a former ally. To combat the problem — and also set up an epic cliffhanger for what's ahead — the issue ended with Thor literally joining forces with a very unexpected ally. Spoilers for Thor #13 from Donny Cates, Nic Klein, Matt Wilson, and VC's Joe Sabino below! Only look if you want to know!