Your knowledge of treasures allows you to quickly identify them and even use them.
Benefit: Whenever you examine a magical item, you may make a Knowledge (arcana) check prior to making your Spellcraft check. This check has the same Difficulty Class as the Spellcraft check. If the Knowledge (arcana) check is successful, your Spellcraft check to attempt to identify the item takes only a single standard action. In addition, you may use Knowledge (arcana) in place of the Use Magic Device skill when you attempt to use an item that you have identified or otherwise have intimate knowledge of (but not when you attempt to use an item blindly).
Normal: Normally identifying a magical item takes 3 rounds.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.