Well I can help here, a little atleast.
1)Stance: It might seem a bit weak but keep in mind, it can never be stolen and you can use it with any body part. So even if your tied up, so long as you get a limb free you can still defend yourself; and you can still carry stuff in your hands while using it. Moreover, it's the only one that can be given the EMpowered Armament enchancement, adding your Wis or Cha to damage.
So in effect, all of the mods the Mist Breaker had for Unarmed combat were converted into Armament enhancements; so there ya go.
2)The energy damage costume effect was merged with the energy resistance one and converted into the primal Costume effect.
The addition of mote investment for Devices and costumes certainly themes to qwell any worries that people might've had about the new classes having to many motes. Ah, the glorious suffering that is having too many good choices, and not being able to take them all together.