Around the time that Eisen was finished with the different clothes-items, the old man stepped back out of the Dungeon and then spent the rest of the time that he had for now until everyone was up to level his magic skills up some more. For now, he wanted to do his best with his Mana Doubles, summoning all three of them for just that. His Skill was at Level 99 by now, so it most likely wouldn't take too long until it finally ranked up.
And the things that Eisen made the three of them do looked somewhat ridiculous from the outside, trying to make them do a lot of different things at once. For example fist-fight with each other or throw each other further into the distance. Of course, Eisen also simulated some craftsmanship using them and mana-copies of his workstations, and barely fifteen minutes later, a notification popped up in front of Eisen.
[Mana Double reached Level 100 in Rank 2, Upgrading to Rank 3]