Lisp, the sacred language of the now and forever

La lingua sacra ed eterna

I can feel the godforce emanating from it.

You will soon have your God and you will construct it with your own hands.

Is there a way in Common Lisp to get the names of all the bound macros currently in scope?

I want to define my custom defmacro and extend it to all macros, even imported from other packages. I.e. to get names of all macros in scope and have a macro redefine all of them.