Improved Spellborg (3.5e Feat)
From D&D Wiki
Improved Spellborg [Racial]
You gain more benefit for being a Spellborg
Prerequisite: At least one Spellborg template
Benefit: You gain one extra Spellborg benefit. If you have multiple instances of the Spellborg template, this only applies to one of them.
Normal: You only gain 3 benefit per Spellborg template.
Special: This feat can be taken a number of times up to the number of Spellborg templates you have.
Credit: Eiji is the original author of the template, he deserve all the credits.