Board Thread:Questions and Answers/@comment-67.82.63.221-20121222174453/@comment-24516498-20140207083251

@Link1275 Diablos is actually pretty weak against Ice damage since 3U. I killed her (Black) with no traps or bombs in about 10 minutes with the Blizzarioths+ (Dual Blades).

As for the initial question, a rule of thumb I prefer is; The faster the monster, the faster your weapon needs to be. I'm an avid Hunting Horn user and have solo'd with it since Unite, but the HH is not the right weapon for the job with these things. Cutting damage is the way to go, and on terms of being fast and dealing out elemental damage, Dual Blades wins. Attack the same leg and go for the tail on staggers, you'll break off everything easily.