Cloak itself isn't OP but it's really annoying in combination with surprise attack and fear spamming. How to counter this?
Radiant Magelight negates the stun from stealth and reduces stealth crit damage. Immovable potions make you immune to CC. (handy against alot of classes not just NB's. I run them myself even as a NB)
They forgot to nerf immovable potions? Now that cloak is safe, the Nightblade Mafia should start lobbying to make fear safe too!