Spontaneous caster: Every time you gain access to a new spell level, you may choose and additional spell known and may use metamagic on this spell without increasing casting time.

Preparing arcane caster: You gain access to another spell school from your allowed schools.

Preparing divine caster: Choose one domain and add its spells as bonus spells to your known spells. This does not give you any other benefits of the domain. The domain must be reasonably aligned with your god.

No caster: You gain access to either the wizard, cleric or druid spells. You receive 3 cantrips of choice that you my use your intelligence modifier times per day and 1 first level spell slot. You do only receive one bonus spell slot per three points of attribute modifier. Intelligence is your dependent modifier for spell-casting.

You can learn the "Extra Spell" and "Extra Slot" feats for your highest spell level.

You receive a +2 on skill checks to research something using books or a library.