sorry if I am being stupid, but I just am not sure about the rules. ???
So if the person that I am playing against plays a graboid rush deck, then a pharaoh/scarab deck, would that be breaking the rules? Even though graboids aren't
creatures they use
OR
If I play a deck centered around fallen elfs, and then a deck with ffqs. Since both of their abilities use
, even if it is fed from the mark, it is illegal?
some of the comments are a little ambiguous regarding this.
EDIT: Ok, thanks for the clarification.