Yami was not expecting Serena to suddenly go on the offensive, but was even more surprised to see Dartz of all people. Some of those memories were not good. "Dartz?" He looked to Serena then who was fighting Timeaus. "Serena! Stand down." He ordered. "Timeaus is an ally." Which meant so was Dartz. 

"Thanks." Marik heads out of the room to go find the cookies in the kitchen. 

Seto nods. "Got it." He sits down in the chair and getting on his laptop running the data on the leylines and where each one might end up based on the pattern before him.