Unnamed Heartwood Bugged?

I was wondering if Unnamed Heartwood was bugged as the totems do live at 0hp so long as they dont get hit during those 6 seconds however if they do at all during that time they do die. Would appreciate clarifcation as the wording on the acendency doesnt seem to match the effect.

Tried Adding Duration as i thought i just forgot to add enough time for the totems and they still die after 1 hit going past 0hp