Familiars have hit dice equal to their master's character level "for the purpose of effects related to number of Hit Dice" (PH 3.5 pg. 52). Does this mean for the purposes of effects aimed at the familiar, or does it apply to the familiar's abilities as well? For example, consider a 4th level wizard with a tiny viper for a familiar. Obviously, it counts as a 4 hit die creature when hit by a sleep spell. But what about its poison bite? An ordinary tiny viper's poison saves at DC 10: 10 + half its hit dice (1/2, rounds to zero) plus its Con bonus (+0). Does the 4th level wizard's snake familiar have a DC 12 poison bite?
All opinions are welcomed.
All opinions are welcomed.