I would like to report after a long and argues examination (5 years) of the Hero Panel (Skills), I can definitely state there is no in-Hero Panel description of the Necromancer’s Shroud Skill.
This bug is reproducible easily, just play a necromancer and open the Hero Panel and check all the Skill tabs and the bug will manifest.
On a serious note, WTF??, there are a ton of skill that are not in the Hero Panel, such as stolen skills, Minion Activation Skill description, Weapon Chains and so forth. Even after 5 long years, I need to go check GW2 wiki for information on skills.
Additionally while I’m at it, how about adding a character counter for the Topic Title?