User blog comment:Mineko Charat Lucky/Touhou LoL - Utsuho, Scorching Restive Divine Flame/@comment-16203163-20130822084936

I have a question regarding her passive:

It has a 16 second cooldown, but it only lasts for 3 seconds, yet it can stack up to 8 times.

How can the stacks be applied if it has a 16 second cooldown?

Or does the cooldown only start AFTER the Damge-over-time is finished? (Meaning that you can keep adding stacks as long as the Dot remains, but after the Dot expires, you have to wait 16 seconds before reapplying Hell and Heaven Meltdown)

I'm just wondering since it seemed kinda vague to me.