UNWIND multiple unrelated arrays loaded from JSON file

The actual problem here is just an unnecessary , between the last line of your SET clause and the WITH clause. Get rid of that, and you get rid of the syntax error.

That said, I highly recommend grouping each UNWIND with the clauses which act on the unwinded values, then resetting the cardinality back to a single row before performing the next UNWIND and processing. Something like this:

//LOAD CLASSES AND UNWIND COMMON ITEMS,COMPANIONS,LOCATIONS CALL apoc.load.json("file:///c://pathToFile//classes.json") YIELD value AS classMERGE (c:Class {name: class.name})SET c.strength = class.strength,c.intelligence = class.intelligence,c.dexterity = class.dexterityWITH c, classUNWIND class.items AS itemMERGE (i:Item {name: item})MERGE (i)-[:LIKELY_HAS]->(c)MERGE (c)-[:LIKELY_BELONGS_TO]->(i)WITH distinct c, classUNWIND class.companions AS companionMERGE (comp:Class {name: companion})MERGE (comp)-[:LIKELY_COMPANION_OF]->(c)MERGE (c)-[:LIKELY_ACCOMPANIED_BY]->(comp)WITH distinct c, classUNWIND class.locations AS locationMERGE (l:Location {name: location})MERGE (l)-[:LIKELY_LOCATION_OF]->(c)MERGE (c)-[:LIKELY_LOCATED_IN]->(l)