Improved Blood Component (3.5e Feat)
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 Improved Blood Component [General]
When infused with your blood, your magic is far more powerful.
Prerequisite: blood component class ability, Con 18
Benefit: When using the the blood component ability to raise your caster level, you may now sacrifice a number of hit point equal to your Constitution modifier, doing so you raise your caster level by an equal amount.
Special: You may only raise your caster level to double your normal caster level. For every 5 points of damage you deal to yourself, you take 1 point of Constitution damage.