[Slydria]

I think it would be acceptable for Orkam Drehen to lower SS by 2 (and by that token require at least 2 SS to use), it outright prevents combinations like pulling someone with Orkam Drehen straight into a Grandupper.

I say lowering by 2 rather than 1 since we have a few ways to get 2 from one Skill use. (e.g. Asura Fist, Regenschauer and your pick of Geist Schritt.)