So lets say your group is calling a wipe because the tank or too many people went down, You can actually get out of combat with feign death, vanish, or invisibile in a two spots i found. In lynx boss where you first enter there is a cubby hole in the left and right.
Basically jump up on the ledge then use whatever you can to get out of combat. You will remain in combat until everyone else dies. But the boss should reset.
For Hexlord same thing. When a wipe is declared, run to the back corner of the room. Now either stand on the tablets then drop combat or the pillar and do so. As long as the boss does not do spirit bolts before you drop combat he will reset. Either side works. Here are some screens.
[img=http://img522.imageshack.us/img522/5423/pilar1no5.th.jpg]
[img=http://img522.imageshack.us/img522/6007/tablet1vc2.th.jpg]
hope this saves some people some gold.
Happy holidays.