Invisible Power Effect

[Lestat]

What are the combat effects (bonus, etc...) of a sword that is invisible (bought with IPE)?

[Steve Long]

There are no specific "combat effects." The effect is that people can't see the blade, which often allows the character wielding it to make Surprise Move attacks, strike unseen from the shadows, and so forth.

If you want the sword to, for example, hit targets more easily because it's invisible, you can buy it some OCV bonuses or the like to simulate that.