Demonflesh

Fiendish Codex I: Hordes of the Abyss (FCI)Updated Supplementals (3.5)

Demonflesh is a D&D 3.5 spell (Transmutation) from FCI. On class lists for Blackguard (Level 1). Range or area: Personal; Saving throw: None (harmless); Duration: 1 minute/level; Casting time: 1 standard action.

School
Transmutation
Casting Time
1 standard action
Components
V, S
Range
Personal
Target
The caster
Duration
1 minute/level
Saving Throw
None (harmless)
Spell Resistance
No (harmless)

Your flesh becomes thick and leathery like a demon’s.
This spell grants you a +1 enhancement bonus to your natural armor for every five caster levels you possess (minimum +1, maximum +4).
A creature without natural armor has an effective natural armor bonus of +0.