@set (object) = QUELL
If a Wizard or God is set QUELL, his or her powers are temporarily
turned off until the flag is unset.
Wizards can not use their powers to inspect or modify objects or
players set QUELL. It behaves like Kryponite, if the wizard has
it, they can't use their special powers at all. If someone or
something else has it, the wizard is unable to use their wizardly
powers with regards to the quelled player or object.
Objects owned by a player are still controlled by that player,
regardless of any combination of QUELL flags on the player or
Part of QUELL's purpose has been transfered to the TELLALL flag.