If I may add a little, I find mages play a more crucial role (and much more fun to play) in elite Shuyal than Tindirin, because the mob density is higher in Shuyal but all of them are freezable. For Overgrowth for example, having a mage in pt helps with dealing with the blue mages that spawn to heal boss. And in Undim Fields elite, mages just rock. Tindirin poses more challenge because some mobs can't be frozen.