5 – When you begin to crouch, gain Stealth Detection for 10 seconds. This effect can only be activated every 30 seconds.
5 – Adds 129 Weapon Damage
This set needs to be much better if it's going to be used. Right now I wouldn't even wear it even if I was facing nothing but nightblades in Cyrodiil all day long.
I would love it if a set gave some really good stealth detection capabilities (seeing as magelight/hunter were nerfed to break stealth when you cast them and mark only lasts 5 seconds now). Our current options to fight nightblades are very limited, and this new Sentry set is not an answer.
If I can make a suggestion, what's the idea of a Sentry? A guard who watches for stealthed, invisible, or crouched users. If the Sentry set instead increased detection radius by some X number (similar to the PTS Bosmer passive), and also prevented them to be unable to return to stealth for X seconds if they take damage, it would be a much better counter set that I might actually use.
Another idea would be to make it a strong proc dot set like old sloads which would reveal an enemy's stealth every second, but make the dot only apply if that person was in stealth (so the proc would only work on stealthed/invisible targets).
I would use this set if I could reasonably find stealthed people with it. However, I don't see myself finding people by crouching every 30 seconds.