How does PoW Dragon fury prestige classe interact with Multiweapon Fighting?

[Wind_Paladin]

I'm Dm'ing for a home game and was working on a kasatha npc that is taking lvs in the Dragon fury prestige class,

But does dragon fury work with four weapons? A lot of its abilities say "when fighting with two weapons" so would its abilities only apply to two weapons or all of them?

I know I'm the dm and can house rule it, but I would like to know what RaW is.

[KahnyaGnorc]

Well, if you are wielding three or four weapons, you are still technically fighting with two weapons, as it does not exclude fighting with more.