Quote Originally Posted by Lyinginbedmon View Post
I'll also note a few more things he can do that might seem out of place:
  • He can't be shaken, frightened, panicked, nauseated or sickened.
  • He never becomes confused, fatigued, or exhausted.
  • He has Regeneration 5; any lost body parts regrow in 15 minutes. Good and Chaotic weapons deal normal damage to him (He has no innate damage reduction).
  • When disabled, generally by being at 0 HP, he can make either a full-round action each round or a move action and a standard action.
  • When cure spells are used within 100 ft. of him, he can make an opposed Concentration check with the caster to steal some or all of the healing, to his full normal HP.
Yeah, he's certainly a pretty tough guy.
Mind explaining this one? Usually, regeneration and damage reduction is weak against weaponry of opposed alignments. Thus, pit fiends take normal damage against good silver-aligned weapons (silver in DnD is usually used against Lawful opponents).

Now, its already been stated that Lying is Chaotic Good, so...