I just understood the phrase
as "emerged from the dungeon with skillful summoning magic and the Phoenix Summon spell."
It's only more difficult in the dungeon and before the first garrison: joining units in the "chambers," for example, are three times smaller than on the hero, so I think that this part of the mission needs to be simplified. After that, recruiting becomes more and more like itself.
I just call myself the "Lord of Charms" – that's what it is!)
I watched, and I don't know, but on auto-battle, the recruit goes through the dungeon and passes four garrisons, and only 2 gremlins remain.