User blog comment:SirAston/URF and the LoL Engine - A To-Do List/@comment-6061249-20140402174642/@comment-5331854-20140402221231

Thing is, Darius can uphold his ult for a practically infinite amount of time as long as he can confirm a kill with the first cast of the 20 sec-buff. So double dunk surely works great here, especially with maxed Hemorrhage.

Fun Fact: He's also close to do the NOXUS! and be like his unofficial twin brother Garen with URF Q.