The Special Spiral Dilemma

After finally pulling a Lewyn I've found myself with a tough decision to make. I have a +2 optimal IV Ophelia who is dying to get her hands on Special Spiral for her AOE build, but at the same time I wouldn't mind keeping Lewyn around since he's a very interesting and fun unit himself. His offenses are untouched by IVs, so he's not optimal, nor crippled. Any opinions on what to do here?