Question on dragon 5th buff
I am not quite understand the "repeatable" means?
"Aspect of the Dragon (5 stacks, repeatable): Doubles all other bonuses and your attacks burn enemies for 150 true damage over 5 seconds. Lasts 180 seconds."
I want to ask
After that 180s gone, will I return back to the 4th stack and I can get the 5th stack again if I killed the 6th dragon?
Or
I can keep the double bonus part for the whole game once I kill the 5th dragon, and the true damage part last 180s. After 180s,the true damage part has gone, I can gain the true damage part again for my 6th dragon kill?
thank you for answering :)