My rabbit-trollkiller?(abilities of familiars)

[Sethir]

My white rabbit (he looks like the rabbit from Monty Pythons quest for holy grail ) have suprising abilities.
I am bard at lvl 11.
My rabbit do about 6+1 dmg to enemies(+1 is one point of fire damage)!
I will use him as the trollkiller
Have other familiars this "critical" strike?
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Homo homini rabbitus
SFMBE

[Sabre]

Fairy Dragon (Chaotic Good) get +1 electrical damage. Which isn't as useful as the Rabbit's +1 fire. All other familiars only do normal damage. Most of them do 1D6 although the Quasit (Chaotic Evil) does only 1D3.

[]RiPPeR[]

if i remember well the gnoll from polymorph spell do +3 damages plus a fire damage and the imp has the polymorph hability