Lingering Wounds - Critical hits reduce healing on target by 50% for 15 seconds. (25% with only 1 talent point in the tree, but we're assuming people are smart enough to put in that extra point for the extra 25%.)
Vampiric Munitions - Grants ranged weapon attack abilities a 20% chance to reduce healing received by 50% for 15s and siphon 40% of the stolen healing to the Rogue. Lasts 1h.
Fell Blades - Grants weapon attacks a 20% chance to deal an additional 57 Death damage, reduce healing received by 50% for 15s, and siphon 40% of the stolen healing to the Rogue. Lasts 1h.
- All apply passively
- All can apply on AoE (correct me if I'm wrong about this on FB - I have not played NB much in PvP)
- All reduce healing received by 50%
- All have a 15 second duration
- All can be applied at a moderate distance with the right build
- LW cannot be cleansed while VM and FB can be cleansed
- VM and FB siphon healing while LW siphons no healing
- VM and FB are applied through a % chance of application while LW is applied through crit
- VM has a reduced proc chance with AoE attacks while LW has no reduced proc chance with AoE (honestly don't know about FB on this)
- VM and FB are duration buffs that can be purged while LW can only be prevented by avoiding crits from warriors
All "facts" are taken from patch notes, ability descriptions, etc. If you disagree with a "fact," feel free to explain why. It appears to me that there is an issue with Lingering Wounds and the issue is that there is no counter. Once the debuff is on you, it's on you for 15 seconds, or until you die. It can't be cleansed, you can't purge a buff and then cleanse LW to prevent re-application like with VM or FB.
We're essentially looking at a situation where any warrior with moderate crit and at least 17 points into champion can reduce healing on a target, or multiple targets, with nothing to prevent application outside of killing the warrior and nothing to counter the debuff once it is applied other than very strong healing.