Double weapon and spells?

[Shin Okada]

Well, each heads of a double weapon are treated as separate weapons when making MW weapons or magical weapons. But how spells like Bless Weapon, Greater Magic Weapon, Spikes and such work on a double weapon? Shall I choose one of the heads when casting such spells? Or is it still considered to be "one weapon" and thus both of it's heads gain the spell's effect?

 

[shilsen]

The only spell I can think of which explicitly references a double weapon in the description is shillelagh, which says that a quarterstaff gains the enhancement on both ends of the weapon. Which leads me to think that in general, other spells will affect one head of a double weapon. The fact that magical double weapons need each head enchanted individually arguably supports that approach.

That being said, since there's no explicit statement about this in the RAW, I think it's reasonable (and not at all overpowered) to have spells affect the entire weapon, i.e. both heads at once.

 

[dcollins]

As I read it: Must enhance each end separately. Except for shillelagh.

 

[Shin Okada]

Thanks. So only shillelagh spell has the clear ruling. I will discuss with my friends about how to handle it in our current campaign.

 

[Lonely Tylenol]

There's an FR spell, called something like Blades of Flame, which affects two weapons or one double weapon.