Cranium Rat CRs (Fiend Folio)

[Savage Wombat]

Anyone care to comment on the CRs given to Cranium Rat swarms in the Fiend Folio? Let's see, a 6 HD monster that does 2d6 a round, is immune to weapon damage, and can mind blast like an illithid every other round - CR 2?

 

[SteelDraco]

D'oh. Didn't realize who started this thread until I noticed your avatar.

*gulp*

 

[Savage Wombat]

Shhhh... don't spoil it for anyone else.

 

[javcs]

From your description, yeah, it sounds a tad low.
What're the saves like? (Both its saves and the save for its abilities.)

 

[Savage Wombat]

Fort +7, Ref +8, Will +6.

Mind Blast DC 14. - stunned for 3d4 rounds.
Distraction DC 15.