Case battle
A mode where several players open the same cases or boxes and the highest total value usually takes all the items.
In a case battle, two or more players pay for the same set of cases or boxes and open them together. In the standard mode the player with the highest total value takes every item; some modes reverse that.
Because a player-set client seed would favour one player, sites often use the hash of a future block on the EOS blockchain as the random input, so nobody can know the result when the battle starts.