1. some of the Xykon floor cards specify that you can not rest in that room, while most do not, and the Safe Haven specifically says you can. Does this mean that the part on the safe haven is just an extra sentance, or can you not rest in the rest of the xykon floor rooms and the Xykon's Secret Layer cards have the extra sentance?

2. this is more of a general curiosity question, but why can you only use Roy's charge schtick when going into empty rooms, rather than anytime you end your movement in a room causing you to fight monsters? also, do you have to choose to use the charge before monsters are played or can you wait to see what you have to fight before choosing whether you charged in?