I *THINK* (though I may be completely imagining it) that the glossary at the back of MM3 has something about 'removed from play'
I was a little surprised to find this in the Compendium.
OK, maybe I'm being pedantic, but does anyone else find "Removed from Play" VERY jarring for an RPG? I can expect it with Magic the Gathering or something similar, but D&D? Uh-uh. C'mon, developers & designers...
If you can't take actions, do you make a save at the end of your turn?
Making a saving throw is not a Free, Minor, Move, Standard, Immediate or Opportunity action, as far as I understand.
They should have called it "Banished" rather than the very gamist Removed from Play.