Tentagon now starts at four tentacles at tenth level. then eight at twentieth.
Fast movement now grows +10ft at eighth, and sixteenth.
The Great Tentacle can now keep its captives if so chosen, at level twelve. I note that it can only be called from shadows, which was intended but left out it seems.
But thats not why they;re called "Shadow" Shadow is just a typical name for stealthy, night time killer people.