I have this weird hangup about foddering a Catria I've never used, someone please talk some sense into me.

So I need a Slaying/Killer Lance for fodder, and I have a 5* Catria who has been sitting in my barracks for ages, unused. I pulled her back when Catria was in the 5* pool and have never touched her.

Reasons not to fodder her:
*She's +atk -hp, which is the best IVs I have for a Catria, and I generally try not to fodder people with decent IVs.
*She's the only 5* Catria I'm ever gonna get since she's no longer in the 5* pool.

Reasons to fodder her:
*I could save 20k feathers by doing so (since if I don't I'd have to promote someone else).
*Both Cordelia and Shigure (not to mention Tana, if I ever get her) have strictly better offensive spreads, and I like all of them more than Catria.
*I've never used her. She's been sitting untouched in my barracks for months, if not a year at this point.
*I don't care for her art, and I'm pretty meh about her as a character.
*If, despite all this, I ever decided I wanted to use Catria anyway, the fact that she's in the 3* pool now means I could probably get her with even better IVs than I currently have.

All reasonable signs point to foddering her, but I'm enough of a hero hoarder that part of my brain keeps going "but what if I suddenly want her???", even though realistically I don't see that happening. Someone please talk some sense into me.