Blood Component Substitution Feat 12
Source Pathfinder Advanced Player's Guide
You can bypass the need for incantations and gestures by drawing energy directly from your blood, causing you to visibly glow the color of your blood and crackle with magical energy. When you Cast a Spell, you can replace all verbal, material, or somatic spellcasting components with a blood component.
To use a blood component, you lose Hit Points equal to twice the spell's level as the energy in your blood is depleted, and you can't decrease the Hit Points lost in any way.
As usual for altering components, this has no effect on the number of actions required to Cast the Spell, and your Cast a Spell activity gains the concentrate trait but not the manipulate trait. You can't use blood components to replace any required part of a spell's cost.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
SorcererThis indicates abilities from the sorcerer class.