Sources
CR
Type
Size
Alignment
Movement

Corrupted Rat

Tiny Monstrosity, Unaligned

Armor Class 10
Hit Points 1 (1d4 - 1)
Speed 20 ft., climb 20 ft.
STR
2
-4
DEX
11
+0
CON
9
-1
INT
2
-4
WIS
11
+0
CHA
4
-3
Skills Perception +2, Stealth +2
Senses Darkvision 30 ft., passive Perception 11
Languages
Challenge 0 (10 XP)

Traits

Agile. The rat doesn't provoke Opportunity Attacks when it moves out of an enemy's reach.

Death Burst. The rat explodes when it dies. Constitution Saving Throw: DC 9, each creature in a 5-foot Emanation originating from the rat. Failure: 1 Acid damage.

Actions

Bite. Melee Attack Roll: +2, reach 5 ft. Hit:1 Piercing damage.

Lore

Corrupted by a malevolent ex-adventurer's magic, the rats of Elmshire are mottled and sickly. Their organs glow and bubble beneath their scabby hides as if ready to pop. These pests sometimes gather in squeaking tides, devouring everything in their path.