Bonus Damage Types

[Side]

The spells Keen Edge and Weapon of impact add the keen ability to slashing and blunt weapons respectively. My question is if a weapon that is, say, typically piercing has an extra damage type that is covered by one of these spells would they work on improving that weapons critical range?

[Luna]

no

[Knightmare]

Keen edge works on halberds though as they are slashing and piercing weapons.

[Blackman D]

keen edge works on any non blunt weapon

but it is the original weapons dmg type that gets checked not extra properties, so a halberd with extra melee blunt would not have weapon of impact work