+spd - atk... Silas...

If you really hate this unit that much, fodder him.

I think it's good enough to build.

Oof. Tough luck. It happens...my Celica is -Spd and so is my Ayra. If you're going to keep summoning, save him for a merge; otherwise, Even Def Wave is a fantastic C skill to fodder for any soloing tanks you might have. I put mine on Legendary Ephraim.

Just wait for him to get demoted and promote a better iv silas