MASK Red
Level 4 FIRE Warrior
ATK 1900 DEF 1000
If your opponent controls a monster and you don't control a monster, you may Special Summon this card, from your hand, in Attack Mode. Increase the Attack of all MASK monsters by 200 points times the number of MASK monsters on your side of the field.

MASK Green
Level 4 WIND Warrior
ATK 1900 DEF 1000
If MASK Red is on your side of this field, and if this card attacks before it, it gains 1000 Attack during damage step alone. If you activate this effect, it is sent to the Graveyard during your end phase, unless MASK CALL-OUT! is face up on your side of the field.

MASK Yellow
Level 4 EARTH Warrior
ATK 2000 DEF 700
Your opponent cannot target another face-up MASK monsters for attacks. When this card attacks and destroys an opponent's monster, your opponent loses life points equal to the Attack of the destroyed monster.

MASK Blue
Level 4 WATER Warrior
ATK 700 DEF 2000
If this card is attacked, once per turn, it is not destroyed. During each of your Standby Phases, you may put one MASK card from your grave into your hand. If you activate this effect, you may not activate it your next turn.

MASK White
Level 3 LIGHT Warrior/Tuner
ATK 800 DEF 900
This card may not be attacked if you control another MASK monster. If this card is used for a XYZ Summon a MASK XYZ monster, it is treated as a Level 4 monster. During each Standby Phase, you gain 300 Life Points times the number of MASK monsters on your side of the field.

MASK Black
Level 4 DARK Warrior
ATK 2000 DEF 2000
Unless MASK CALL-OUT! is face up on your side of the field, this card loses 500 Attack and 500 Defense every Standby Phase it is face-up on the field. The turn this card is summon, if it attacks a monster with a higher Attack than this card's Attack, your opponent's monster is destroyed instead of this card (damage calculation still applies).

GREAT MASK ROBOT
Level 8 LIGHT Machine/Fusion
MASK Red + MASK Blue + MASK Yellow + MASK Green + MASK White
ATK 3500 DEF 2600
This card can only be Special Summoned from your Extra Deck by sending the above cards you control to the Graveyard, or by using the effect of M-VEHICLE I (You do not use "Polymerization".) If this card was Special Summoned by M-Vehicle I's eff, double this card's initial attack.   This card can attack each monster on your opponent's side of the field.

ULTRA MASK ROBOT
Level 9 DARK Machine/Fusion
MASK Black + GREAT MASK ROBOT
ATK 3900 DEF 3400
This card can only be Special Summoned from your Extra Deck by sending the above cards you control to the Graveyard. (You do not use "Polymerization".) This card may not Special Summoner the turn you Summoned a GREAT MASK ROBOT. If the GREAT MASK ROBOT used was Special Summoned by M-Vehicle I's eff, double this card's initial attack. This card is also treated as a LIGHT monster, and it's name is also treated as GREAT MASK ROBOT. This card may attack each monster on your opponent's side of the field.

M-VEHICLE I
Level 7 FIRE Machine/Synchro
MASK White + MASK Red
ATK 2600 DEF 2400
During your Main Phase, after the turn this card is Synchro Summoned, you may Special Summon one MASK White from your Graveyard. If M-VEHICLE I, M-VEHICLE II, M-VEHICLE III, and M-VEHICLE IV are face up on the field, you may tribute them to Special Summon one GREAT MASK ROBOT from your Extra Deck.

M-VEHICLE II
Level 7 WIND Machine/Synchro
MASK White + MASK Green
ATK 2600 DEF 2400
During your Main Phase, after the turn this card is Synchro Summoned, you may Special Summon one MASK White from your Graveyard.

M-VEHICLE III
Level 7 EARTH Machine/Synchro
MASK White + MASK Yellow
ATK 3000 DEF 2000
During your Main Phase, after the turn this card is Synchro Summoned, you may Special Summon one MASK White from your Graveyard.

M-VEHICLE IV
Level 7 WATER Machine/Synchro
MASK White + MASK Blue
ATK 2000 DEF 3000
During your Main Phase, after the turn this card is Synchro Summoned, you may Special Summon one MASK White from your Graveyard.

MASK Formation α
Level 4 LIGHT Warrior/XYZ
2 Level 4 MASK Monsters
ATK 2500 DEF 2000
This card's name is also treated as the name of each of its XYZ material, and gains their effects. If any material is detached, it loses that material's name and effect (All Equip Spell cards attached to this card that specify that material are also destroyed). If this card is targeted for an Attack, you may detach one XYZ material monster to negate that Attack.

MASK Formation β
Level 4 LIGHT Warrior/XYZ
3 Level 4 MASK Monsters.
ATK 3000 DEF 2100
This card's name is also treated as the name of each of its XYZ material, and gains their effects. If any material is detached, it loses that material's name and effect (All Equip Spell cards attached to this card that specify that material are also destroyed). If this card is targeted for an Attack, you may detach one XYZ material monster to negate that Attack.

MASK Formation γ
4 Level 4 MASK monsters.
ATK 3500 DEF 2200
This card's name is also treated as the name of each of its XYZ material, and gains their effects. If any material is detached, it loses that material's name and effect (All Equip Spell cards attached to this card that specify that material are also destroyed). If this card is targeted for an Attack, you may detach one XYZ material monster to negate that Attack.

MASK Formation δ
5 Level 4 MASK monsters.
ATK 4000 DEF 2300
This card's name is also treated as the name of each of its XYZ material, and gains their effects. If any material is detached, it loses that material's name and effect (All Equip Spell cards attached to this card that specify that material are also destroyed). If this card is targeted for an Attack, you may detach one XYZ material monster to negate that Attack.

MASK Changer
Spell
Tribute one Monster on your side of the field to Special Summon one MASK monster from your deck.

Sword of Fire
Spell/Equip
This card may only be attached to MASK Red. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead.

Lance of Wind
Spell/Equip
This card may only be attached to MASK Green. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead.

Axe of Earth
Spell/Equip
This card may only be attached to MASK Yellow. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead.

Bow of Water
Spell/Equip
This card may only be attached to MASK Blue. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead.

Staff of Light
Spell/Equip
This card may only be attached to MASK White. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead. Once per turn, you may destroy this card and tribute one MASK monster (Excluding MASK White) to Special Summon one Level 7 MASK Syncrho Monster (This is treated as a Syncrho Summon).

Dagger of Darkness
Spell/Equip
This card may only be attached to MASK Black. A monster equipped with this card gains 600 Attack. If the monster equipped with this card would be destroyed by battle, you may destroy this card instead.

MASK WEAPONS GO!
Spell
All MASK monsters gain 500 Attack, aside for GREAT MASK ROBOT and ULTRA MASK ROBOT.

ULTIMATE MASK ATTACK GO!
Spell
You may only use this card if MASK WEAPONS GO! is face-up on the field. Destroy one monster on your opponent's side of the field.

MASK CALL-OUT!
Spell/Field
When this card is face up on the field, MASK monsters and M-VEHICLE monsters on your side of the field can not be destroyed by battle (damage calculation still applies). During each Main Phase, you main Special Summon one MASK monster on your field from your deck or hand that doesn't have a copy on your side of the field. If MASK Red, MASK Blue, MASK Yellow, MASK Green, and MASK White are on your side of the field, you may summon one MASK Black in the Spell/Trap Card Zone (It is treated as a Monster). If this effect is activated, you can not activate it again until the first MASK Black is removed from the field.

MASK FINISHER!
Spell
This card can only be activated if GREAT MASK ROBOT is on your side of the field. Destroy Monsters on your opponent's side of the field whose total number of Stars is 10 or lower. Your opponent then takes damage equal to half of their destroyed monster's total Attack points. After this card resolves, destroy the GREAT MASK ROBOT use, and Special Summon as many MASK cards from your Graveyard as you can (Aside for GREAT MASK ROBOT or ULTRA MASK ROBOT.)

CALL TO ACTION!
Trap
Activate this effect if one of your Monster is destroyed by battle. Special Summon one level 4 MASK Monster in Attack mode from your deck.

Power Transfer
Trap
Tribute one MASK monster, and choose another monster. Until the end of the turn this card was activated, that selected monster gains the Attack, Defense, and Effect of the monster that was used for tribute.  You may only activate one Power Transfer per turn.