Getting a high tier of Upgrade Piece or Generating Piece is not easy as 1,2,3.
But once you have this, you don't have to purchase any Device and Pack to open it!
Here's what you can get per each Box.
1. Enhancing Random Device
This package contains Character Upgrade Pieces from Normal ~ Legend Tier
2. Creation Random Device
This package contains Character Generating Piece from Magic ~ Legend Tier
3. Mixed Random Device
This package contains both Character Uprade and Character Generating Piece
Note: This can only be acquired via Limited Time Events.