Previous Versions can be found here.
The Dimensional Box was added in Beta 8.3. Since Beta 56.0, it catches an enemy monster of your choice when played. But once this card dies and is still unsilenced, the monster you caught will return to the board, if possible.
This monster is primarily used to permanently remove a card of the opponent from play, like Frisk and The Heroine, when combined with Break (in Integrity) or Igloo (in general). This is because replaying the same Box will reset its Magic and its Dust will only release the new caught monster. You can also use a Silencer like Ball Person (for even less G than Igloo), which makes it also not able to trigger its Dust and give the opponent their monster back. Transforming the Box with a card such as Red Bird is also an alternative, albeit an unconventional one. This does not count as killing the box, and has the potential of putting a much stronger monster on the board. Nacarat Jester, Coffee Man, and Chaos Duck can be used to the same effect, but are much more costly.