Bloodline

Filled with magical power that screams for release, sorcery is not so much a calling as a blessing—or a curse. For some sorcerers, this arcane birthright manifests in subtle and carefully controlled ways, assisting in their manipulation of others or the pursuit of lofty goals. For others, it is wild and unpredictable, the primal and explosive lashing out of a power greater than themselves. 
Your bloodline grants you bloodline spells, special spells unique to your lineage. Bloodline spells are a type of focus spell. It costs 1 Focus Point to cast a focus spell, and you start with a focus pool of 1 Focus Point. You refill your focus pool during your daily preparations, and you can regain 1 Focus Point by spending 10 minutes using the Refocus activity. Unlike other characters, you don't need to do anything specific to Refocus, as the power flowing through your veins naturally replenishes your focus pool.
Focus spells are automatically heightened to half your level rounded up. Focus spells don't require spell slots, nor can you cast them using spell slots. Taking feats can give you more focus spells and increase the size of your focus pool, though your focus pool can never hold more than 3 points.

Execution

Bloodline Entry

A bloodline entry contains the following information.

• Spell List You use this magical tradition and spell list.
• Bloodline Skills You become trained in the listed skills.
• Granted Spells You automatically add the spells listed here to your Spell Repertoire., as described in the Spell Repertoire class feature. At 1st level, you gain a Cantrip and a 1st-level spell. You learn the other spells on the list as soon as you gain the ability to cast sorcerer spells of that level.
• Bloodline Spells You automatically gain the initial bloodline spell at 1st level and can gain more by selecting the Advanced Bloodline and Greater Bloodline feats.
• Blood Magic Whenever you cast a bloodline spell using Focus Points or a granted spell from your bloodline using a spell slot, you gain a blood magic effect. If the blood magic offers a choice, make it before resolving the spell. The blood magic effect occurs after resolving any checks for the spell's initial effects and, against a foe, applies only if the spell is a successful attack or the foe fails its saving throw. If the spell has an area, you must designate yourself or one target in the area when you cast the spell to be the target of the blood magic effect. All references to spell level refer to the level of the spell you cast.

— Core Rulebook pg. 194 2.0