From Fallen Sword Wiki
Name: Aura of Protection
Description: +0.1% base Defense, +0.1% base Armor and +0.1% base HP per point.
Duration: 90 Minutes
Max. Modifier: +20% base Defense, +20% base Armor and +20% base HP with 200 points
Potions with this Skill
+0.1% base Defense, +0.1% base Armor and +0.1% base HP per point. Of the base stat defense buffs, this is the one to get if you want one. But that is based entirely on that it boosts 3 stats.