Familiar

Source: Codex: Chaos Space Marines (2002), p. 19

Familiar

A Sorcerer can normally only have one major psychic power, but a Sorcerer with a Daemonic Familiar may have two. Only one major power may be used per player turn though. The Familiar is always assumed to be on the same base as its master, although it is permissible to represent it separately for modelling purposes. It does not count as an extra model, takes up no space in transport vehicles and is only removed when its master is removed.