Board Thread:General Discussion/@comment-25056223-20151221194038/@comment-410526-20151221202034

She could be a mage or caster sort, like Weiss. We know Taiyang is the brawler (like Yang), Qrow has the scythe (like Ruby) and Raven has a big katana (like Blake), which leaves the mage role unfilled.

Alternatively you could say that Raven has the Dust sword (since it seems to have Dust components, like Myrtenaster) and Summer has... whatever Blake has.

Monty did say he likes to think of teams as filling in RPG party roles or classes. It'd also go well with the whole generational parallels thing they seem to be going for between RWBY and STRQ.