Looking at this interaction:
Flayer’s Pride - Reduced health cost of spells
Sacrifice spec on smite - Health cost (percent of current health) 3-15%
There is no reduction in the health cost of smite with this shield. It’s not like it’s multiplicative with Attonement either (also spelling bug - should be Atonement). It does work on health cost of Acolyte’s Transplant, so maybe it’s a thing about spells that don’t have a health cost by default?
The Shield says “reduced health cost of spells”, and Smite says “Health Cost:”… BUT, in the English text of Smite, the wording is “Smite consumes a percentage of your health”
This might not be a bug, but it’s definitely a feels-bad moment. I’d recommend that the wording on Smite should be changed. Smite is the #1 Skill that people wanted to use this new shield with. I wish it worked, too.