Powerful Bond

Curses are inflicted on you instead of Linked targets
20% increased Buff Effect of your Links for which 50% of Link Duration has Expired [1]

Powerful Bond is a notable passive skill.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Indigo Oil	Indigo Oil	Indigo Oil	Powerful Bond	Curses are inflicted on you instead of Linked targets 20% increased Buff Effect of your Links for which 50% of Link Duration has Expired

Version	Changes
3.21.0	The Powerful Bond cluster has moved location on the Passive Tree to make space for the new Righteous Fury cluster. The Powerful Bond Notable Passive Skill no longer provides "Link Skills have 20% increased Buff Effect" or "Link Skills have 10% increased Skill Effect Duration". Instead, it now provides "Curses are inflicted on you instead of Linked targets" and "20% increased Buff Effect of your Links for which 50% of Link Duration has Expired". The two small Passive Skills in this cluster now both provide "Link Skills have 15% increased Skill Effect Duration" (previously 10%), the small Passive Skill prior to Powerful Bond no longer provides "Link Skills have 10% increased Cast Speed".
3.16.0	Shocking Strikes is removed from the game. Existing item anointed with that passive would have new passive Powerful Bond instead.
3.11.0	Now grants 40% increased Critical Strike Chance against Shocked Enemies (up from 30%). [Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.]
3.9.0	Introduced to the game.