Mystic Assassin
Mystic assassins use magic in their deadly work, and are often affiliated with outsiders or schools of magic.
Class Skills: Knowledge (arcana) (Int), Knowledge (planes), Linguistics (Int), Spellcraft (Int).
Secret Training (Ex): Mystic assassins gain no class features from their secret. Instead, they cast spells. The number of spells of each level he can prepare each day is given on Table: Assassin. When Table: Assassin indicates that the mystic assassin gets 0 spells per day of a given spell level, he gains only the bonus spells he would be entitled to based on his Intelligence score for that spell level. The arcane assassin’s spell list consists of all simple spells and all spells with the acid, cold, darkness, electricity, or sonic descriptors. They are never able to learn spells with the positive energy, healing, or negative energy descriptors.
A mystic assassin starts with a spellbook containing a number of 0th level spells (cantrips) equal to his Intelligence modifier (minimum 1) from his spell list. At each level, the assassin can add one more spell from his spell list to his spell book, provided he can cast spells of that level.
A mystic assassin can only cast spells of level zero to four, spells of 5th level or higher are not on the mystic assassin’s spell list. Mystic assassins can prepare a number of cantrips, or 0th level spells, each day, as noted on Table: Assassin under “Spells per Day.” These spells are cast like any other spell, but they are not expended when cast and may be used again.