The map change goes both ways - if you're stuck it can open up a lot of paths. But yeah, it can be frustrating when it changes and closes off potential moves.
Maybe it's because I'm still a beginner with not that many cards but I'm finding this game really boring... I guess that's because I used to play M:TG...
 "Continuity"){kind=icon}
 "GLOBAL FORAGER"){kind=icon}
 "Anaksha: Female Assassin"){kind=icon}
 "Age of War"){kind=icon}
 "Kongai"){kind=icon}