Bloodline Arcana

Unlike most sorcerers whose innate magic is powered by force of personality, you use pure willpower to master and fuel your magic. You use your Wisdom, rather than your Charisma, to determine all class features and effects relating to your sorcerer class, such as bonus spells per day, maximum spell level you can cast, and the save DCs of your spells. You gain a +2 bonus on Lore (Religion) checks.