So I sat and stewed on a design for a weapon that does all three types of damage (piercing, bludgeoning and slashing). The design I came up with was a two handed exotic weapon that does slashing on one side with a slim axe head, bludgeoning on the opposite with a hammer head and piercing on the end with a spear. Then I thought to myself, what kind of damage should it do? I thought of 1d6 for the the slashing and bludgeoning and 1d4 for the piercing. But I'm not sure if it should be 1d8 and 1d6. Opinions?