The feat Battle Song Expertise states that
"you gain a +1 feat bonus to attack rolls you make with any weapon or wondrous item that has a property allowing you to use it as an implement for your bard powers and bard paragon path powers." (Dragon 402)
I was going to pick up the Arcane Implement Proficiency - Weapon feat for my Skald to use my weapon for implement attacks and then improve the attack bonus with BSE, however, the wording on the feat makes it sound like the weapon NEEDS to be a Songblade or similar. Is this intended? At the moment, the related White Lotus Dueling Expertise feat seems like a much better option.