Sources
CR
Type
Size
Alignment
Movement

Guthash

Medium Beast, Unaligned

Armor Class 12
Hit Points 16 (2d6)
Speed 30 ft.
STR
7
-2
DEX
15
+2
CON
11
+0
INT
2
-4
WIS
10
+0
CHA
4
-3
Senses darkvision 60 ft., passive Perception 10
Languages
Challenge 1/4 (50 XP)

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:4 (1d4 + 2) piercing damage. If the target is a creature, it must succeed on a DC 10 Constitution saving throw or contract a disease. Until the disease is cured, the target can't regain hit points except by magical means, and the target's hit point maximum decreases by 3 (1d6) every 24 hours. If the target's hit point maximum drops to 0 as a result of this disease, the target dies.

Lore

Some giant rats carry vile diseases that they spread with their bites.