Poisons cannot be applied to weapon with multiple damage types

[peps]

Where: The Drain, Mad Dok Rattok

What: His poisons cannot be applied to weapons like the morningstar, halberd, scythe, or any weapon that inherently has two damage types to it.

Yet to check if all poisons have this issue.

[EO]

This bug only affected Morningstars, which were considered both Piercing and Bludgeoning. Fixed it.