uncommon n large construct mindless 

Perception +12; darkvision

Skills Athletics +15

Str +6 Dex +3 Con +5 Int -5 Wis +0 Cha +0

AC  22; Fort +16, Ref +14, Will +7

HP 95; Immunities bleed, death effects, disease, doomed; Weaknesses fire 5

Pest Haven The rotting hides and molding straw stuffing of skinstitches are ideal nesting grounds for vermin and insect swarms. Any animal swarm sharing a space with a skinstitch gains fast healing 3. Additionally, if a creature deals at least 10 piercing or slashing damage to the skinstitch, the swarm can use its swarming bites Strike (or similar attack) against the attacker as a reaction.

Speed 25 feet

Melee [>] blade +15 (agile, sweep), Damage 2d4+8 slashing

Melee [>] cudgel +15 (forceful, reach 10 feet), Damage 2d8+8 bludgeoning

Flay [>>] The skinstitch makes a blade Strike against an animal or humanoid. On a success, the skinstitch slices a long strip of flesh from the target; if the skinstitch dealt damage, it deals an additional 1d6 persistent bleed damage.

Stitch Skin [>] (manipulate) Requirements The skinstitch hasn't used this ability since the last time it successfully used its Flay ability; Effect The skinstitch sews flayed flesh to its body to seal tears and rents. The skinstitch regains 8 Hit Points.

AoE2, page 84.