Teamwork plays a great role here ^^
Try to get best available party combination
My pt was warden, ranger, priest, and 2x bd, we did well with 4mins time left 🙂
For elf side, warden is a great tanker here, ranger and mage do great dmg as ranger plays in speed, and mage in aoe, priest as healer + dmger and as the one to remove stuns using redemption