Please don't create pages for Sword Skills that do not have a clear description. By that, I mean that the actual execution of each hit must be described for a Sword Skill to qualify for a page of its own. For Ukifune, you only described that it has one hit and sends the target into the air, but you didn't describe how that one hit is actually performed. Seeing as its animated, you should be able to describe the execution even if the novel doesn't mention it.
Ah, sorry. I didn't put how the skill was performed because it wasn't actually stated in the novel, but it didn't even occurred to me of using the animation. Still, I wasn't even sure about uploading the page, however as I managed to squeeze enough content and find images I decided to do it. And about the question asked in the edit summary of the page, Illfang simply slashed Diavel with the katana instead of using the Sword Skills in the manga. I'll be more careful about creating pages next time.
For future reference, Sword Skill pages have different criteria than other pages. Whether an SS page should be made or not should be decided on the availability of a description of the execution of the skill. It doesn't matter whether you get it from the novel or anime (unless the anime screwed something up), though do leave references for which medium you used for the description.