Quote Originally Posted by Zfz View Post
Technically, the form of battle content we often call "primals" are actually "Trials", we just all call them primals, ending up with this ambiguity.

Alexander is a raid (which refers to its content classification), and a primal (which refers to its position in lore). There is no content classification called "primals".
There is a difference between primals (a summoned boss created by Aether) and a simple trial (just a boss).