Ah so... the "5th edition version" of prestige classes is "we removed the concept of prestige classes"
Artificer does have some features that reduce the cost and time to make magic items... but in Konsi's case, there's four problems with taking the artificer class as a multiclass.
- Multiclass rules are... pretty bad in 5e, and honestly the game is better if you just don't use them (this is my subjective opinion)
- Artificer is a really bad class for Konsi - it gives a lot of features and proficiencies she already has, and some low level spells she doesn't need. (Also it's int-based, and her int is 9, also she doesn't even qualify to take the class.)
- She wants to focus on being a cleric (Smithing is mostly a side-gig because she has the hammer.)
- The artifact hammer is giving insane discounts to the cost and time of making magic items already, other bonuses probably wouldn't stack. It takes her 6 days and 500gp to make a pair of sending stones.
In the comic here, she's level 9.