Iris Havengard Current Progress

Very brilliant! Altering an existing relic would be perfect. Perhaps the cursed ring would be an interesting choice?
I was going to suggest an idea I had some time ago to use one of the unused rare items, but this is much better.
However, for the purpose of a trigger to improve the Fuse ability in the WoR, it might be cool to find a rare item that does it.
That would make more polished and give it more depth.

That would leave;
Czarina Ring
Cursed Ring
Dragon Horn
FakeMustache
Memento Ring
Merit Award
Moogle Charm
Sprint Shoes