Small Construct, Neutral
Armor Class 16 Natural
Hit Points 22 (5d6 + 5)
Speed 30 ft., Special (see text)
STR
10 (+0)
DEX
16 (+3)
CON
12 (+1)
INT
8 (-1)
WIS
10 (+0)
CHA
10 (+0)
Saving Throws DEX +5
Skills Perception +4, Performance +4
Damage Immunities Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Condition Immunities Blinded, Deafened, Exhaustion, Poisoned, Restrained
Senses Blindsight 10ft, Darkvision 60ft, Passive Perception 18
Languages Understands those known by its master but can't speak or write
Challenge 1 (200 XP)
Proficiency Bonus +2
Traits

Magic Resistance.  The Animate Image has advantage on saving throws against spells and other magical effects.

On your Skin.  Any attack that targets and hits the animate image inflicts full damage to the surface or creature that the image is covering, even if the image takes no damage. 

Two Dimensional.  The Animate Image cannot stand on its own, but it can cover any surface without being harmed. Whenever it is touching a creature or object that moves, the image goes with it. The image can slide through cracks as thing as paper without suffering ill effect. If the image is located on an object held in mid-air that isn't touching anything else, as though by levitation, it is trapped and cannot move. 

Actions

Papercut.  Melee Weapon Attack: +8 to hit, range 5ft., one target. Hit: 1d8+3 piercing damage. 

Inscribe. As a bonus action the Animate image burns a copy of itself onto the surface it is covering, inflicting 2 acid damage. 

Pete1601