There was a magic item in one of the two magazines a couple years back that I loved and wanted to use in my table top game. Now I can't find it and I was hoping someone might remember what it was (and/or which issue it was in). I want to say it had "Iron" in the title, basically it was a pokeball. You could use it on a creature, essentially trapping it inside, and then release it and have it fight for you.

I have searched through the compendium, and I'm not finding it in any of the searches I've done. I've looked through every wondrous item that the compendium has pulled up. I'm hoping it wasn't an April fools item or something.

Frustrating.

Any ideas?

No idea if they converted it to 4e, but it used to be called an "iron flask." You could trap extra dimensional creature (I think an efreet is in there by default). They had to fail a will save or be sucked into the bottle. When you opened the bottle, it would serve you for an hour.

Okay, maybe this?

No, it wasn't the iron bands, it was similar to the Iron Flask that you described, but it didn't have a default creature trapped inside, and it could be used on any creature from what I remember. I wonder if they had to pull the item for some reason...