Energy

Energy is spent to place cards on the battlefield. The player begins a battle with 6 Energy and can hold a maximum of 10 Energy during battle. During the battle, once 1 minutes have passed Energy production is doubled for the remaining duration of the game. Energy is produced gradually throughout the battle at a rate of 1 Energy every 2.8 seconds, every 1.4 seconds during Double Energy time.(rever numeros e se os jogadores ganham um energy quando comeca o double enrgy.)

Profit and Loss
Energy level is just as important as other game mechanics like card placement and having a balanced deck.
 * Energy is considered 'profited' when the player spends less Energy than the opponent and the Energy level grows beyond the opponent's. Gaining an Energy profit by making a play is known as a 'positive Energy trade'.
 * Energy is considered 'lost' when the player's Energy dips below the opposing player's. Making the opponent gain an Energy profit by making a play is known as a 'negative Energy trade'.
 * When the player has more Energy than the opponent, the player can often attack and defend much easier.
 * It's very hard to defend lots of troops/high hitpoint troops with low Energy.
 * It's also hard to attack since the other player can easily defend with lots of Energy.
 * To gain Energy, defend with cards that cost less than the opponent's attacking card. Common examples are Recruit Platoon defending APC or Airborne Division. Both net a 2 Energy profit.
 * It's also very important not to maximize on Energy, as the player is unable to generate more Energy.
 * This is especially true at the beginning of the game. If the players max at 10 Energy excessively, they are wasting Energy that could be gained if a card is deployed. However, it is imperative to not rush decisions and make unnecessary placements. It's OK to max at 10 Energy if the opponent is also maxing at 10 Energy.
 * If the player has 10 Energy, deploy a troop at the back of the arena. This will help the player gain some Energy over time to support the unit placed and create a push.
 * Waiting to max your Energy at the start of the game can be used to your advantage, however. You can wait for an opponent to start a push and then counter it in some way with your 10 Energy (and maybe gain Energy Advantage) and then create a counterpush.
 * In battle, players should never leave themselves with 0 Energy. If an opponent initiates a strong offensive push, a defending player with 0 Energy may possibly lose a Small Bunker/Trench and open themselves to a 3 badge defeat.