Automatic Languages: A skin feaster can read, write, and speak any one language that it could in life.
Bonus Feat: A skin feaster gains Simple Weapons Proficiency as a bonus feat.
Flesh Weakness (Ex): A skin feaster that successfully deals damage to an opponent with its necrotizing touch attack must spend its next turn devouring the flesh that has fallen from that opponent’s body. It takes no other actions during this time but can defend itself normally. It can consume an amount of flesh equivalent to 3 points of Constitution damage (or drain; see below) per round.
Necrotizing Touch (Su): With a successful melee touch attack, the skin feaster causes lumps of flesh to fall from the target’s body, dealing 1d3 points of Constitution damage; a successful Fortitude save negates (DC 10 + 1/2 the skin feaster’s Hit Dice + its Charisma modifier). On a failed save, the target must attempt a second Fortitude save at the same DC. Failure indicates that 1 point of the Constitution damage already taken becomes Constitution drain instead.
Skin Regrowth (Su): If a skin feaster manages to eat an amount of flesh equivalent to 6 points of Constitution damage (or drain; see above) in any 24-hour period, it begins to regrow its skin. This process requires 1d6 hours. For the next 1d3 days thereafter, the skin feaster appears just as it did before its death, excluding scars, moles, or other minor skin imperfections. Only the creature’s appearance changes—it is still an undead with all of its usual species traits except the flesh weakness, which is not active while the skin feaster wears its new skin. Once this period is over, the skin feaster’s regrown skin sloughs off, restoring it to its usual appearance and reactivating its flesh weakness.
Undead: Skin feasters have the traits and immunities common to undead.
Skin Feaster: CR 3; Medium-size undead; HD 4d12; hp 26; Mas —; Init +3; Spd 30 ft.; Defense 16, touch 13, flat-footed 13 (+3 Dex, +3 natural); BAB +2; Grap +2; Atk +2 melee (1d4, claw); Full Atk +2 melee (1d4, claw) or +5 ranged; FS 5 ft. by 5 ft.; Reach 5 ft.; SQ flesh weakness, necrotizing touch (DC 13), skin regrowth, undead; AL evil; SV Fort +1, Ref +4, Will +6; AP 0; Rep +0; Str 10, Dex 16, Con —, Int 6, Wis 15, Cha 12.
Skills: Climb +6, Jump +6, Listen +8, Read/Write Language (any one), Speak Language (any one), Spot +8.
Feats: Simple Weapons Proficiency.
Advancement: 5–8 HD (Medium-size); 9–15 HD (Large).
Advanced Skin Feaster: CR 5; Large undead; HD 9d12; hp 58; Mas —; Init +2; Spd 30 ft.; Defense 16, touch 11, flatfooted 14 (–1 size, +2 Dex, +5 natural); BAB +4; Grap +12; Atk +7 melee (1d6+6, claw); Full Atk +7 melee (1d6+6, claw) or +5 ranged; FS 10 ft. by 10 ft.; Reach 10 ft.; SQ flesh weakness, necrotizing touch (DC 15), skin regrowth, undead; AL evil; SV Fort +3, Ref +5, Will +8; AP 0; Rep +0; Str 18, Dex 14, Con —, Int 6, Wis 15, Cha 12.
Skills: Climb +9, Jump +9, Listen +10, Read/Write (any one), Speak (any one), Spot +10.
Feats: Agile Riposte, Dodge, Simple Weapons Proficiency.