Isn't that equivalent to 3AP worth of damage not 4AP? Guerrilla offers +50% damage, which 50% of 2 attacks is +1 attack? That would then be the same as attacking three times with a 1h dagger and not needing the Guerrilla talent.
So it does. Huh, I misread it all along... Okay, well, that makes things simpler: Guerrilla is a garbage Talent not worth taking.
