Hobble

Hobble [minor] by Iczer

'You used to be hot stuff, but not anymore'

The character can partially negate some of a target's superabilities, wasting them down to a shadow of their former selves.
The character specifies one target within 60 feet as an action. That target makes a saving throw (16+) Or suddenly see one randomly chosen Major power disappear, to be replaced by a smaller, minor power.
In all cases the character's attributes, including SDC remains the same, and no new adjustments are made for the new minor power. The minor power that replaces the lost major is chosen by the GM based on any obvious choices.
The power remains lessened as long as the character is within 60 feet. The character may hobble additional powers from the same target or new targets without the others returning. 1D4 rounds after the target leaves the 60 foot area around the character, his powers return.