The game is played by two players who control an army of creatures. The object of the game is to lower the energy of that player's opponent's creatures to 0 by way of attacks, mugic, or creature abilities. The game can be played with a varying amount of creatures in each army (1vs1, 3vs3, 6vs6, 10vs10) and with a varying amount of complexity. The game can be played in the advanced apprentice ruleset where no mugic is used and combat is only attacks. Masters is the next step up where mugic and activated abilities are used. Masters games take longer and require full knowledge of the rules.