User blog comment:AYET/Interesting powers and fighting abilies/@comment-3425840-20130118121243

How about Kalifa's DF? Similar to Mr. 3 and Magellan's?

Also Aokiji's ice is Logia but still tangible, unique among Logias right?

Brook's ability to sing people into sleep is not directly related to his DF and of course quite unique in my opinion.