Imp sorcerer, pf.

[Jergmo]

So, I was thinking about joining this Pathfinder game. With monsters. Meaning, we are monsters with class levels.

A player of the group made an attempt to explain me the rules for advancing monster by class levels 'cause I'm new to pathfinder. Then, just to see if I could figure it out myself, I checked the book itself.

Now, however, I am confused. The explanation given to me by the players seems incoherent with what the book says.

My question is then; if the group starts at ECL 6, how many levels of Sorcerer would an imp, following the pathfinder rules, have?

Imps don't have a listed level adjustment, which means that somehow, despite it not being particularly powerful, its level adjustment would be so high as to be unplayable. However, if you go by general 3.5 rules, it'd be at minimum ECL 3 due to hit die.