While you're on it, why not everyone reveals what abilities/roles they have? It would make so much sense, wouldn't it? OH WAI-
Villagers use tokens to use abilities!
But, but, onee-chan, Cresty-kun said he has an investigation ability.
Oh, that's because assassins have a set of their own abilities nii-chan. Just go with the flow, pretend it never happened and let the innocent assassin be protected while he gathers people's roles.
YAY! Onee-chan is so smart!