Gnome race or in a cabal.
skills: 1 rank in hide and bluff
Feats: Spell focus (illusion)
Special: 3 illusion spells, one of which is a shadow subschool illusion of 4th level or higher
Skill points: 4 + int bonus per level
skills: bluff, concentration, disguise, hide, knowledge arcana, move silently, perform, search, spellcraft, and spot
+1 existing spellcasting class per level
lv1: Cloak of shadow:
15% cover + 5% per shadowcraft mage level
lv2: silent illusion: treat illusions under the effect of silent spell, without raising spell level or casting time
lv3: shadow illusion: figment spells become treated as shadow spells with a percentage equal to 10% real on a successful will save per level of the spell. silent image, minor image, major image, persistent image, and programmed image are able to mimic a conjuration (summon), conjuration (object), or evocation from the wizard/sorcerer spell list 1 level lower than the image spells level.
lv4: extend illusion: treat illusion spells under the effect of extended spell without spell level adjustment or increased cast time. spells for example are silent image, minor image, major image, persistent image, and programmed image.
lv5: shadow spells, and any image illusion(figment) spell turned illusion(Shadow) gains +20% realism to it upon casting.