Tesseract

Tesseract is indestructible.
When you cast Tesseract look at the top X cards from your library, you may reveal a creature from it and put it into your hand, put the rest on the bottom of your library in any order.
Equipped creature has "{c}{t}:Exile target creature, then return it to the battlefield under its owner's control."
Equip {2}
The Tesseract was the jewel of Odin's treasure room.