Harpy, Plague 2014
CR 6 monstrosity
Medium monstrosity, neutral evil
STR16 (+3)
DEX14 (+2)
CON17 (+3)
INT11 (+0)
WIS14 (+2)
CHA16 (+3)
Limited Telepathy.
Magically transmit simple messages and images to any creature within 90' of it that can understand a language. This telepathy doesn't allow receiver to telepathically respond.
Virulence.
A creature infected with harpy's plague becomes contagious 24 hrs after contracting the disease. When a creature starts its turn within 5 ft. of contagious target that creature must make DC 15 Con save or also contract harpy's plague disease.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details