Talk:Vel'Koz/@comment-3529242-20160501053454/@comment-5256197-20160504114905

Only basic abilities add stacks to innate deconstruction-debuff. AA's only refresh innate duration. Once the innate pops, they gain additional researched-debuff for 7 secs which makes the ult deal true damage. There's no reseach stacks, it's a single debuff that comes from applying 3 stacks of deconstruction-debuff.

The reseached-debuff duration can also be refreshed wit AA's and abilites, so you can try to get the fabled 5 man true damage ult.