Sometimes mugic cards are affected by the location, for example, in Wood Pillar, Overworld mugic costs 1 extra mugician. Each player lays out their creature cards in a triangular formation at the start of the game. This is called their Army. Officially, Armies can have 1, 3, 6 or 10 creatures in them, though sizes of 15, 21, or even 28 or larger are possible if players have enough cards. The different sizes correspond to different degrees of difficulty: battling with 1 or 3 creatures is considered an "easy to play" match, suitable for new Chaotic players, with 6 and 10 being the "standard" sizes and larger sizes being for more advanced matches. (The animated series once featured a 105-versus-105 size, with each side using 105 creatures; however, this battle was never finished, as both players were undeniably exhausted.) Players place their creatures face-up in the formation of an inverted triangle, with the bases of the two triangles placed against each other. Players also select one Battlegear per creature to equip to them. On a player's turn, they may move each of their creatures once per turn, but only one space on the playing mat each unless otherwise specified. A battle is initiated when a player moves their creature onto a space containing an opponent's creature on the playing mat. Each player may initiate one battle per turn. A "burst" occurs when a player plays an attack card, mugic card, or a Creature or Battlegear's trigger abilities are activated. This is similar to the "stack" from . Once a burst has started, players alternate adding to the burst with their own abilities or effects. Once both players agree to stop adding to the burst, the effects are resolved starting from the last card effect or ability down to the card that started the burst. There are very little differences between the official rules and the rules of the OCG. The OCG had a deck composed only of cards with the discipline symbols on them called the "Discipline Deck". The attacking player turns over the top card of the "Discipline Deck" to determine the type of contest between the opposing creatures. The creatures's discipline stats are enhanced or reduced by the battlegear attached, or the location. The players then draw "Power Cards" that have multiples of five printed on the cards. The players take turns to draw power cards which reduce the stat of the selected discipline of the opposing creature. The first player to reduce the selected stat of the opponent's creature to zero is the winner of the battle.