Specifically they use gems with geometries inscribed in them to summon carbuncles. In my interpretation it's not really clear what kind of gem, though. All colors of carbuncles have rubies on their heads, and in FFXI (yeah yeah I know) one used a Carbuncle's Ruby to unlock the Sumoner job, so I always call them rubies, but then the carbuncles have names like "Emerald Carbuncle" and "Topaz Carbuncle" so some people play it as, inscribed emeralds summon emerald carbuncles, inscribed topazes summon topaz carbuncles. Me, I just say it depends on the geometry which carbuncle you create but it's (usually) in a special ruby. I love playing with arcanists who summon their carbuncles in different ways, though!
What other sort of lore were you looking for? Like... how arcanima actually works? Because there's not very much hard lore on that either. The geometries shape the magic, and the ink used for grimoires is specially made from things like blood and electrum sand so that it conducts aether well. Beyond that it's a bit subjective, headcanon territory.
What other sort of lore were you looking for? Like... how arcanima actually works? Because there's not very much hard lore on that either. The geometries shape the magic, and the ink used for grimoires is specially made from things like blood and electrum sand so that it conducts aether well. Beyond that it's a bit subjective, headcanon territory.
![[Image: IvpjiCs.png]](http://i.imgur.com/IvpjiCs.png)
