I'd recommend the following: - Razorsharp; replacing/upgrading the teeth with the crystals/a superior alloy makes it better at cutting through armour. - Power Field immunity, like the Force Weapons; the crystals make it resilient to energy fields. - Proven (3); through extensive fine tuning, modification and the addition of the alloy/crystals, the weapon is much more effective at dealing death. Those are my thoughts, good luck!