Ancestral skill echo support

ARPGs is a pretty open genre, you see a skill in poe some or another game will adopt it and put their own twist on it
POE does that too, the devs of arpgs do that in the advancement of ARPGS as a whole

So why do I mention other arpgs? it is because games can learn and adopt from each other.

I like the void knight in Last Epoch.

How does one copy or adopt that skill in poe?

Like this: Ancestral echo support:
Supported skills deal 30% less damage
Supported skills casts and ancestral echo 0.3 seconds after casting the skill, dealing 70% of the supported skills damage
can stack with barrage, multistrike, spell echo support.
channeling skills are supported too
does not support totem or minion skills.