Apep Segment

Segment. The segments are linked together, and must follow behind the segment designated as the "head". The segments retrace the head's past movements. When a segment is defeated in such a way as that it would leave a gap between multiple others, the headless segment chain creates a new head at the split. A segment chain cannot be less than 5 segments long, and a chain that is less than 5 segments long shares a pool of hit points. A 2-segment-long chain is immediately destroyed. Apep is 20 segments long. A segment chain makes exhaustion saving throws as a whole.

Bite. 2d8 piercing damage plus 3d4 poison damage.

Vengeance. A newly-created head can make a bite attack in response to being split from a chain.