NWN2Wiki
NWN2Wiki

Unfettered Defense is unlisted in the AC breakdown of the combat log however it will add to the final total. But as a conditional modifier, it may not always be present. Note this is also unarmored AC and not Dodge as described (but only if the character is combat ready, unarmored AC is contary to description and will be applicable to all attacks). As described, it does work with a shield but not with Canny Defense. 

However if attacked prior to initiative or caught flat-footed in a relaxed state, the Invisible Blade will lose this bonus AC.  Ragimund (talk) 04:23, April 12, 2020 (UTC)