What you were expecting to happen, and what actually happened?
I used black manacles against my opponent’s team, led by Great Maw, then Infernal King + 2 other troops. Black manacles killed Maw, devoured Infernal King, killed other two troops (all weakened by other attacks at this point). Infernal King resurrects into first place. So far, so good. Then Infernal King gets a set of 4, and Huge activates (but I don’t think it got any life from it). Then it matches skulls, and who’s hiding behind it? A ghost Maw! Which disappears back behind Infernal King once he comes back from his attack. Then I kill Infernal King ( a couple of turns later). Game ends, but there’s a ghost Maw sitting on the opponent’s team (presumably wailing mournfully).
What are the steps to make it happen again?
Probably kill Maw and Infernal King together, and have Infernal King resurrect. Not sure.
Do you have any screenshots or video you want to share with us so we can see the problem? Attach them to your post!