Improved Blood Craft (3.5e Feat)
From D&D Wiki
Improved Blood Craft [General]
Your blood becomes even stronger.
Prerequisite: Con 18, Blood Craft
Benefit: When using blood crafting points, you may now use them in place of gold pieces. You also gain additional blood crafting points per item crafted equal to your Blood Magus level.
Normal: Blood crafting points can be used instead of experience points when crafting magical items or casting spells with an experience point component.