According to Big Bad Toy Store

Similar to Attacktix, Battleague is a game in which a player uses character-oriented attack features such as shooting, throwing, punching and flying to knock down an opponent’s game pieces. A more strategy-based version of the game can be played by augmenting individual characters with power chips. Each booster pack includes two blind-packaged DC figures, a mission card, four power chips and two tokens. Each booster box converts into a building to help you create your ultimate urban battlefield.

Recently, they have changed the name from DC Battle League to DC Fighting Figures.