We Need to Start Expecting Mid-Level Sprouts to Play Better

[Raoabolic]

Makes an appearance in Baelsar's Wall - Armored Weapon boss but called something different:

"Dynamic Sensory Jammer "
Damages the player for any actions they take while the debuff is active, including movement.

Also:

T6 - Blighted Bouquet
Ozma - Acceleration Bomb

To be fair, those give you a visual indicator. See the square? Stand still and take care!