I'm gonna repost this here so maybe it gets some attention.
The tooltip for this ability says:
Each Shadow Ability slotted increases your Max Health by 2%/3%
I have tested this and it appears that only 1 ability registers against the bonus. Slotting additional 2/3/4 abilities does not seem to have an effect. Can anyone else confirm this?
1 x Shadow Ability : +2%
3 x Shadow Abilities: Should be +6% but is still +2%
Honor is a dead man's code.