Battle Phase

D. Battle Phase
Once attack preparations have been made in Main Phase 1, you enter the Battle Phase. If you do not wish to conduct a Battle Phase, your turn proceeds to the End Phase.

Keep in mind that the starting player cannot conduct a Battle Phase in their first turn, even if they have placed a Monster Card on the field.

Quick Reference Chart
Start step - Declare that you are entering the Battle Phase. You and your opponent may both play Quick-Play Magic and/or Trap Cards.

Battle step - Select and announce 1 monster to attack with, and declare 1 of your opponent's monsters your target (the monster you wish to attack). You and your opponent may both play Quick-Play Magic damage.

Damage step - Calculate the damage points of the designated monsters. If a monster has a Flip Effect, apply it immediately after damage calculation. However, a Flip Effect does not affect monsters that have already been destroyed as a result of damage calculation.

End step - Resolve all battles by repeating the Battle and Damage Steps as many times as necessary, then declare an end to your Battle Phase. You and your opponent may both play Quick-Play Magic and/or Trap Cards.

I. Start Step
Announce that you are going into Battle Phase. Quick-Play Magic and/or Trap Cards can be played by either player at this time.

II. Battle Step
During their respective turns, players are allowed 1 attack for every monster on the field in face-up Attack Position. However, a single monster can only attack once per turn.

The attacking player chooses 1 of their monsters and designates 1 of the opponent's monster as a target. Play then proceeds immediately to the Damage Step, returning to the Battle Step if the attacking player wishes to attack again with another monster. If the opposing player has no monsters on the field, the selected monster's attack will inflict Direct Damage on the opposing player's Life Points (Direct Damage).

A monster in the Attack Position does not have to attack. Depending on the situation, you can choose whether or not a monster will participate in battle. Once a monster attacks, it may not be changed to Defense Position in the same turn. In addition to monster attacks, both players may use their Quick-Play Magic and Trap Cards during this step.

Replay Rules
Returning gameplay to a previous step and playing that step over again is known as a "Replay". For Example, if the number of your opponent's monsters on the field change due to the effect of Trap or Quick-Play Magic Cards during your Battle Step, a Replay is triggered. When this occurs, play returns to the beginning of the Battle Step with the attacker choosing a new attacking monster and target. Replays can only be triggered by the effects of Trap or Quick-Play Magic Cards.

Example: During your Battle Step, you have declared an attacking monster and designated an opponent's monster as a target. Your opponent then activates their "Ultimate Offering" Trap Card, allowing them to summon another monster to the field. Since your opponent now has a different number of monsters on the field than they did when the Battle Step began, a Replay is triggered and you may again choose a monster to attack and designate a target for the attack. Because a Replay returns play to the beginning of the current Battle Step only, monsters destroyed in previous Battle Steps are unaffected.

III. Damage Step
In this step, the players calculate the damage from the monster's attack. A monster destroyed as a result of battle is sent to the owning player's Graveyard.

The Damage Step is conducted in the manner described in the following pages. During the Damage Step, only Magic or Trap Cards that modify the Attack and/or Defense of a monster may be played. In addition, these cards can only be played before the calculation of damage.

Upon completion of the Damage Step, return to the Battle Step if the attacking player wishes to attack again with another monster.
 

DETERMINING DAMAGE

a. When the Opponent's Monster is in Attack Position

When attacking a monster that is in Attack Position (face-up and vertical), COMPARE THE ATK (ATTACK) OF BOTH MONSTERS.

i. Attacker's ATK Points > Opponent's ATK Points

Attack Results: When the attacking monster's ATK points are higher than the ATK points of the opponent's monster, the opponent's monster is destroyed.

Damage: Subtract the ATK points of the opponent's monsters from the ATK points of the Attacking Monster. This result is subtracted from the opponent's Life Points.

ii. Attacker's ATK Points = Opponent's ATK Points

Attack Results: When the attacking monster's ATK points are equal to the ATK points of the opponent's monster, the result is considered a draw, and both monsters are destroyed.

Damage: Neither player takes any damage. Their Life Points remain the same.

iii. Attacker's ATK Points < Opponent's ATK Points

Attack Results: When the attacking monster's ATK points are lower than the ATK points of the opponent's monster, the attacking monster is destroyed.

Damage: Subtract the ATK points of the attacking monster from the ATK points of the opponent's monster. This result is subtracted from the attacker's Life Points.
 

b. When the Opponent's Monster is in Defense Position

When attacking a monster that is in Defense Position (face-down and horizontal), COMPARE THE ATK (ATTACK) OF THE ATTACKING MONSTER WITH THE DEF (DEFENSE) OF THE OPPONENT'S MONSTER.

i. Attacker's ATK Points > Opponent's DEF Points

Attack Results: When the attacking monster's ATK points are higher than the DEF points of the opponent's monster, the opponent's monster is destroyed.

Damage: Neither player takes any damage. Their Life Points remain the same.

ii. Attacker's ATK Points = Opponent's DEF Points

Attack Results: When the attacking monster's ATK points are equal to the DEF points of the opponent's monster, neither monster is destroyed.

Damage: Neither player takes any damage. Their Life Points remain the same.

iii. Attacker's ATK Points < Opponent's DEF Points

Attack Results: When the attacking monster's ATK points are lower than DEF points of the opponent's monster, neither monster is destroyed.

Damage: Subtract the ATK points of the attacking monster from the DEF points of the opponent's monster. This result is subtracted from the attacker's Life Points.
 

c. Direct Damage: When the Opponent Has No Monsters

If your opponent does not have any monsters on the field, they take Direct Damage. The full amount of the attacking monster's ATK points is subtracted from the opponent's Life Points.

Following the Damage Step, the attacking player can return to the Battle Step, choose another monster, and engage in another battle. Keep in mind that each Attack Position monster may only attack once per turn. The player can repeat these steps as many times as they have monsters available to attack.

Examples of Battle & Damage Steps

(Battle Step)
1. The Target Monster is Attacked:
The attacking player selects one of their own monsters for the attack and designates the opponent's monster as a target. Both players can play Quick-Play Magic or Trap Cards.

(Damage Step)
2. Determine Attack Results:
If the target monster is in face-up Attack Position, compare the ATK points of both monsters. If the target monster is in face-down Defense Position, the card is flipped face-up. Compare the attacking monster's ATK points with the target monster's DEF points. Quick-Play Magic or Trap Cards that modify the ATK and/or DEF of a monster may be played here.

3. Calculate Damage:
Calculate and apply damage from the battle.

4. Apply the Effects of Effect Monsters:
If the target monster has a Flip Effect, it is applied here. Review the instructions on the flipped card and apply it. Do not apply effects to monsters that are already destroyed. If there are monsters with effects other than Flip Effects, these should be applied here as well.

5. Send to the Graveyard:
Monsters destroyed in battle are sent to the Graveyard now. If a monster has an effect stating "When this card is sent from the field to the Graveyard...", the effect is applied during this step.

6. Determine Whether to Attack Again
If other monsters can attack, choose to return to the Battle Step or proceed to the End Step.

IV. End Step
Once all battles have been resolved, the player enters the End Step and announces the end of their Battle Phase.


E. Main Phase 2
When the Battle Phase is over, the turn proceeds to Main Phase 2. As in Main Phase 1, you may Set or play Monster, Magic, and/or Trap Cards. Remember that you are allowed to change the Attack or Defense Position of each monster or perform a Normal Summon or a Set only ONCE PER TURN. Also keep in mind that you may not exceed the 5-card limit for the Monster Card Zone or the Magic & Trap Card Zone.

F. End Phase
Announce the end of your turn. If your hand contains more than 6 cards, discard to the Graveyard until only 6 cards remain in your hand. The opposing player then begins his/her turn with the Draw Phase.

G. End of the Duel
Repeat Phases 1 through 6 in alternating turns until a winner is decided.