Demon, Leech 2014
CR 11 fiend
Large fiend, chaotic evil
STR19 (+4)
DEX16 (+3)
CON21 (+5)
INT11 (+0)
WIS12 (+1)
CHA7 (-2)
Amphibious.
Can breathe air and water.
Blood Sense.
Can pinpoint by scent the location of creatures that aren’t Constructs or Undead within 30' of it.
Magic Resistance.
Advantage: spell/magic effect saves.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details