[ ... This is the first time she's been asked this. Maybe it's wrong of Weiss to assume that everyone knows what sort of traits one could end up having with their moonblessings. ]

Sanguis Moonblessed may end up being capable of using fire magic; Cordis Moonblessed can use ice; Iris Moonblessed can use electricity.

It's been a constant trait with me, and I've purchased something from the travelling shop to make my ice magic permanent.