Needs review
Source: Encyclopedia Arcane: Illusionism

Description: You have superior ability to mimic the effects of spells from a certain school with your illusions

Prerequisites: Spell Focus

You gain a +5 to your Spellcraft check when attempting to mimic a spell from the school indicated by your Spell Focus feat.

Special

You can gain this feat multiple times. Its effects do not stack. Each time you take the feat it applies to a new school indicated by the character's Spell Focus feat.