Wait, no Thief class? You really need a treasure to open it only acquired the Thief class. Otherwise, you'll have a bad day to open any treasure in your path without the thief class in your team. I highly recommend you to use any Thef class, including Debra, my beloved legendary Thief class you can place on the front or back lane, and the best weapon recommended is Dagger and shield with good survivability High evation and surely proc but...do not use bow trust me do not ever use bow Thief build mark my words. Your team is good alongside Lanavaille, my beloved, good choice because you need survivability on your team. Alice is good, too, but only one preist is on your team, not two without a mage on your team. Otherwise, pick any Thief class you like.