As They Wish

Like all sisters there comes fights, Zarya and Arkayna have been fighting a lot, nobody in the group can take it anymore so Piper convinces Malveron to make a spell to switch the girls for a day, but a day turns into two, and two becomes three. While switched the Astromancers inform the Mysticons that Proxima is trying to bring Necrafa back. Can the girls see eye to eye and stop Proxima or is Gemina doomed?