Quote Originally Posted by Menteith View Post
"Bonus HD:These are extra Hit Dice appropriate to the creature's type (vermin for a Large monstrous spider or sword spider, outsider for a myrlochar, or magical beast for a phase spider). Each bonus Hit Die gains a Constitution modifier and improves the creature's base attack and base save bonuses, as normal."

The Large monstrous spider and sword spider both have the Magical Beast type due to the Fiendish template - does the bonus hit die give them Vermin HD (as it specifies in the ability description) or does it give them extra HD appropriate to the creature's type (which is Magical Beast)? It specifically calls them out to gain Vermin HD, but they're not Vermin, which is confusing.
And I specifically addressed it. So. . . .?