[quote=Nightrunner]
Is there any particular realm that would best suit a visit from Michael?[/quote]
Alt-Earth or Mystique is suggestible. Alternatively, Necropoli or Daemon Web. If you really want him to be alone for awhile, Darashan or Perdo Waste.

[quote]Is making an entrance something I should ask everyone involved about, or just do?Dead silence has been slain.
[/quote]
Just do unless your entrance includes butting in a fight/attacking someone.