Does Doedres Undoing (Lingage support) work in Blasphemy?

.........
can I get a straight answer from SOMEBODY ffs,
this game has by far worst player experience trying to figure out this shit

it lets me socket - OK
now,
WTF are curse zones... i dont see any curse zones with Blasphemy
doe it mean
its an Aura now & NOT a curse?
if so
then WTF does it let me socket it into it

or perhaps,
i need to tie in some OTHER support forgot its name but
from the VISUAL aspect i see absolutely FUCK ALL

correct me where im wrong

Yes works with Blasphemy.

There is a support gem at level-3 which enable you to create cursed ground.
Before level-3 support gem your curse is a one-time use (campaign)
With this level-3 "Cursed Ground" support new enemies can enter this zone and gets cursed within these 7 seconds, since it is on the ground floor.