Okay, I'm getting tired of guess work. Is there a list that shows everything that can be fused?
Agranor Library. Book of Fusions.
Open the library and the game will become easier.
Google search "town of magic all fusions", look for a Scribd link. Might be a bit outdated, but I still found it super helpful.
I was gonna just post the link, but apparently these text boxes don't like that.