Imp
Tiny fiend, lawful evil
STR
6
DEX
17
CON
13
INT
11
WIS
12
CHA
14
Armor Class: 13
Hit Points: 10 (3d4+3)
Speed: Walk 20 ft., Swim
Challenge Rating: 1 (200 XP)
Saving Throws:
Skills: Deception +4 Insight +3 Persuasion +4 Stealth +5
Senses: darkvision 120 ft. passive perception 11
Languages: Infernal, Common
Shapechanger
The imp can use its action to polymorph into a beast form that resembles a rat (speed 20 ft.), a raven (20 ft., fly 60 ft.), or a spider (20 ft., climb 20 ft.), or back into its true form. Its statistics are the same in each form, except for the speed changes noted. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.
Devil's Sight
Magical darkness doesn't impede the imp's darkvision.
Magic Resistance
The imp has advantage on saving throws against spells and other magical effects.
Actions
Sting (Bite in Beast Form)
Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage, and the target must make on a DC 11 Constitution saving throw, taking 10 (3d6) poison damage on a failed save, or half as much damage on a successful one.
Invisibility
The imp magically turns invisible until it attacks, or until its concentration ends (as if concentrating on a spell). Any equipment the imp wears or carries is invisible with it.