For the names thing, it makes sense for the reader to only know so many names, since there's the "?" images for yet-unknown characters when the "What were their fates?" checklist happens. You can't say the fate of an unseen person, and especially can't know their name?
At the start, where you only have Belt of Strength, the seer shouldn't even know the names of Meriel or Luna, for instance. Lily and Vane, though, well, that's more worldbuilding on whether the sorta-common folk know their rulers' first names.
Then, a reader who wasn't rushing through things would already know the names of "the Artificer" and "the Warrior" from the "Belt of Strength" scene alone, and from there, just need to find the spell at the Dungeon Entrance, which comes from the only other place Fireball can get at that point.
Thankfully, Private Browsing the game is an easy way to replay it and rediscover details like that. heh.