Let's boost it to 20 HD. The lesser HD, I assume, must have been an attempt at a balancing mechanic for the double attacks. With the CR system in place, we can simply reflect it that way.
Added to Homebrews.
Skills: Hide -3, Listen +10, Spot +14, 2 more ranks (Put 'em in Spot?)
Challenge Rating: 11 or 12
Alignment: Usually chaotic evil?
All-around vision and the improved skill bonuses sound good.
A few other things we might borrow from the multiheaded creature template:
- Improved Initiative and Combat Reflexes as bonus feats
- Each additional head a creature has gives it a cumulative +2 racial bonus on Listen, Search, and Spot checks.
- Darkvision to a range of 90 feet
- Having a redundant head makes a creature more able to survive otherwise lethal attacks. Thus a vorpal blade would have to remove all heads to have its usual effect. (That seems obvious, but we might note that in the flavor text.)
This looks good to me. Are we done?
Go for it!I think we're done statwise.
Do we want to tweak their flavour text to mention their cruel and extortionate nature?