Quote Originally Posted by Liam_Harper View Post
But it's the same potency as Kaiten-Higanbana and Tsubame only repeats the previously executed Iaijutsu. Why would you ever overwrite your DoT with the same potency DoT?

I'm probably missing something obvious since it's late but what's the advantage over double Midare or Goken?
You can DoT up two different targets. Not useful in a single-target boss, but if it has adds or the boss consists of multiple targets then you can DoT up two of them if you wanted to.