Prerequisite: Requires a minimum of 15 Intelligence
As an Disciple - spell casting became a metamagic feat for that caster, allowing them to master spells beyond their abilities.
As a Disciple, if you come across a spell in written form, such as a magical spell scroll or a wizard's spellbook, you might be able to add it to your spell book. The spell must be on the spell list for the class you chose, the spell's level can be no higher than half your level (rounded up). The process of copying the spell into your spell book takes 2 hours per level of the spell, and costs 50 gp per level. The cost represents material components you expend as you experiment with the spell to master it, as well as the fine inks you need to record it.
This feat requires the spell caster, to be level 12.