Originally Posted by
Otansaanpas
yes.
but only for the first tick of the DoT (so rather meaningless)
open the target debuffs and shift-click the dot-nano. you see something like "Damage 340(374)"
the damage in brackets is the first tick and is modified by 10% nano damage in this case.
this can be confirmed with combatlog. 1 tick 374 and 12 ticks 340.
my account is currently frozen so i cant confirm nano efficiency with other attacks, but i have hours worth of data crawl-perking pw dynas (in crawl you cant swing your weapons and you can be in combat to cast perk attacks)
nano damage modifier also affects on empowered lines. orange line takes full effect and dots again only for the first of the 6 ticks (chtonic dissipation still remains best DD proc while nanodmg mod is less than ~20% )