I have no idea what floor he's on and I need him to make Flauros
Have you thought about using the fusion calculator website and create it yourself by fusion?
I'd love to help you locating eligor but tbh it's been a while so i can't remember much about mementos
Flauros is a special fusion and has a set recipe requiring Eligor. Eligor can be found in the Chemdah areas of Mementos.
What do you think?