I'm just going to reiterate my suggestion of:

Distort will have the following effects on those subject to its influence:
-Induce a 20s (maybe more, maybe less?) delay on all teleportation artifacts, subject to standard teleport restrictions (sip, cwho, scry, move, etc all stop the action)
-Instantly dispels all shields, prismatic auras, etc upon initiation of any teleportation effect and prevents them from being re-raised for the duration of the teleport (strips serpent defense, g-pent, etc).