New Monster, Tell Me Whatcha Think

[Nikroecyst]

I just got done watching the movie "Decent". It was an okay movie but it game me some great ideas. Im sure this has been done before so I wanted to get some good ideas based off what every one else thinks.

I wanted to create a race of subterran humanoids based off of the "Crawlers" (as they were listed in the credits) without using a lame exsisting race. I wanted the campaign to be a little horror at this point and need something to really scare the bejezus outta the players. Also, unlike alot of other horror-spelunking films I've seen I want them to be more humanoid than like bat creatures.

I liked how they were blind and had the clicking echolocation like bats. They had the ears for the echolocation too. Could have had bigger noses for the low frequency echolocation though. I know alot about bats, and would like to use this but I know dittly as far as game creation mechanics goes. Especially for a race.

Maybe Scent, Blindsight, bonues to listen, definetly a climb speed. I am looking at these creatures as sorof a non playable base class, like orcs. If some one has suggestions please pipe in. I'd like to get some good ideas for this race.

 

[Nikroecyst]

Heres what im lookin at . . .

Crawler
Med. Monsterous Humanoid
HD 2d8+6 (9Hp)
Initiative +0
Speed 20ft, Climb 20ft
AC 10 (+1 size, +1 NA) Touch 11, Flatfooted 10
Bab/Grapple 2/5
Attack Bite +5 d6+4, or Claw +5 d4+3
Full Attack Bite +5 d6+4 and one Claw +5 d4+3
Space/Reach 5ft./5ft.
Special Attacks Bleeding Wound
Special Qualities Crawling Posture, Blindsight 60ft, Blind, Vulnerability to Sonic
Saves 5/3/3
Abilities Stre 16, Dex 11, Con 16, Int 2, Wis 11, Char 7
Skills Hide +8, Climb +11, Listen +10
Feats Diehard
Enviroment Underground
Organization Solitary (1), Pair (2), Gang (3-7), Family (8-23)
Treasure Standard
CR 2
Alignment NE
Advancement 3-4 Med.

Bleeding Wound: Each time a Crawler hits and deals dmg with its Bite or Claw attacks it deal 1 point of Con Dmg. A critical hit does not multiply the Con dmg. Creatures immune to critical hits (such as plants and constructs) are immune to Con dmg.

Crawling Posture: Due to thier low crawling movement Crawlers are considered small size during any time in which they are not grappling, hiding, or making listen checks.

Vulnerability to Sonic: Crawlers take half again as much (50%) dmg as normal from sonic affects, reguardless of whether a saving throw is allowed, or if the save is sucessful or a failure.

Blind: Crawlers are immune to any spells or effects that rely on visualization (such as being dazzled or most illusions).

Blindsight: A Crawler notices and locates all creatures within 60ft as long as it has a clear line of sight.

Crawlers have a +8 bonus to Climb and Hide and a +10 bonus to Listen.

Crawlers are viscious sbterran humanoids with disgustinly close ties to humans. They typically stand about 5ft tall (about 2-2 1/2 ft when crawling) and have dark grey skin with flecks of black. They have slightly large pointed ears that are sensetive to a wide range of frequencies. Thier noses are pushed up and thier eyes are white with large yellow pupils. Only females have hair and it tends to only grow atop thier heads. Thier hair is usually long and matted. Despite thier humanoid form they crawl on all fours.

Combat: Crawlers can be patient stalkers or wild killers. Thier method usually depends on thier numbers. When alone they will stalk thier prey and wait for an oppurtunity of vulnerablility. When in numbers they are brazen throwing themself at thier prey clawing and bitting untill it or they are dead. As soon as thier victem is immobilized (not neccesarily dead) they imidiately begin eating thier prey. When struck or injured they appear to ignore pain and due to thier constant ravenous hunger all Crawlers fight to the death.

The only problem Im having is with the CR, is it right, not high enough, or too low??? Oh and the advancement. I wanted to do it by HD, but for a Monsterous Humanoid its done by class. Is it ok to give it advancement by HD even if it is Monsterous Humanoid?