You need a goal to talk to your friends?
I'm pretty sure it is, but I've noticed people trying to "win" in RPs like that before with vague powers which really kills the fun. I think the GM might be worried about that.
Did he ever specify a name? He heard it was a her kicked out of a group and that was what was explained.
So he just happened to guess it was Eris
I think you misread what he said.