Weapon Martial weapon, melee weapon 1d12 slashing + 2d12 force damage. heavy, two-handed
Heavy.
Once per long rest, you can choose to cause shatter at 2nd level when you attack with Atomsplitter. The area is centered on you, and you are also targeted by the spell.
If you critically hit with Atomsplitter, you regain the use of the shatter effect. If you critically hit, without having expended the shatter effect, you must use it.