A monster with telepathy can communicate mentally with any creatures within the listed radius, as long as they share a language. This doesn't give any special access to their thoughts, and communicates no more information than normal speech would.
AC 27; Fort +14, Ref +17, Will +20; +4 status to Will vs. mental, +1 status to all saves vs. magic
HP 150; Resistances poison 10
+1 Status to All Saves vs. Magic
+4 Status to Will vs. Mental
Speed 25 feet
Melee Fangs +19, Damage 2d8+8 piercing plus Serpentfolk Venom
Salathiss transforms one of his hands into a tentacle with a blade at the end, allowing him to make morphic weapon Strikes. If he's disguised, whether by magical or mundane means, his disguise immediately ends. He can return his hand to normal with another use of this ability, but doing so doesn't restore his disguise.
Peerless Duplicate(exploration, fortune, occult)
If Salathiss interacts with a creature for 10 minutes, he can choose to expertly duplicate that person. He can roll any Deception check to Impersonate that person twice and take the higher result. This benefit lasts for 24 hours or until he uses this ability on a different creature.
Serpentfolk Venom(poison)
Saving Throw DC 26 basic Fortitude
Maximum Duration 6 rounds
Stage 1 2d4 poison damage and Enfeebled 1 (1 round)
Stage 2 3d4 poison damage and Enfeebled 2 (1 round)