The problem i had with this encounter that i couldnt do anything. the enemy killed themselfs and respawned so the turn would never end since the respawned enemys turns where place at the end. And the loop continous they kill themselfs they respawn they kill themselfs. after a long while it just stopped and i won. Don't know how don't know why... i was a little pissed and i didnt bother with the last puzzle just threw the pyramid through the barrier and teleport my crew past that riddle. :P