So effectively how this works is that you can sell any silver unit you have too many than sanely logical of, then purchase one you know you need desperately for whatever intentions you have for it?
*Looks at pile of Verottes from Rita's farm map*
*Maniacal laughter*
Wasn't Mikoto one of those units that use combos of AW orbs to AW? If anything they're prolly gonna focus on getting all the units with solo AW orbs first before the combo AW orbs get any love.