Shocker I is a Spider-Man foe. Darby became Paralyzer in Captain America (1st series) #343 and returned to being Shocker in New Warriors (2nd series) #6.
Powerloss was apparently confirmed in New Avengers (1st series) #18. A man wearing the generic Resistants uniform was shown in a roughly alphabetical list of the Depowered, in a spot where "Paralyzer" would fit. However, Shocker reappeared with powers in Captain Marvel (9th series) #9.