Sic 'Em! - "Revealed" doesn't affect NPCs
Bladedancer’s require Nuhoch mastery to see them in stealth. Same goes for mordrem in stealth.
Huh, I heard in chat it only works on the secret mushrooms. Either way, regular GW2 Skelks still stealth with Revealed applied…
Some Enemies are not affected by neither Revealed or Nuhoch Mastery and Bladedancer is one of them. I’m pretty sure because I do the Verdant Brink hero point daily basis and I have the nuhoch mastery. It seems that he doesn’t go invisible, but some kind of delayed shadowstep. Checking his tooltip, it seems that is the case.
Other examples that go invisible besides Treasure Mushroom are Mordrem Snipers and Stalkers, and those are affected by revealed and Nuhoch Mastery (Nuhoch Mastery makes them go spectral red).
HOWEVER
Looking at the description of “Sic ’em”, I see that it does not have an AOE Radius to apply Revealed. Every Pet Command, including Shouts, need a valid path or target to work. If your enemy is invisible, it will NOT apply Revealed, because invisible enemies are not valid targets.
But you could PREVENT him to go invisible, if you use before the Stealth. However, like I said, in the case of Blademaster, is not a form of invisibility/stealth, but a Shadowstep with a delayed duration.
Edit: Even so, if you are applying revealed to someone and he goes invisible, then… it’s a bug XD