The Aura of Might enchantment is supposed to grant +2 defense per Essence, but only does this for blunt defense. Cutting and piercing only get +1. The reason can be seen here:
This is part of the calculation for blunt.
Code: xml
- <Expression><![CDATA[[TileYieldEssence]*2]]></Expression>
This is for cutting and piercing.
Code: xml
- <Expression><![CDATA[[TileYieldEssence]]]></Expression>