Cards

Mask of Weakness

Trap|Normal

Target 1 attacking monster; that target loses 700 ATK until the end of this turn.

Mass Driver

Spell|Continuous

Tribute 1 monster on your side of the field to inflict 400 points of damage to your opponent's Life Points.

Master & Expert

EARTH|Level 4|[ Beast / Normal ]

ATK 1200|DEF 1000

A deadly duo consisting of a beast master and its loyal servant.

Master Kyonshee

EARTH|Level 4|[ Zombie / Normal ]

ATK 1750|DEF 1000

A wandering Kyonshee searching for a strong rival to defeat. They say he was known as the master of all martial arts.

Master Monk

EARTH|Level 5|[ Rock / Effect ]

ATK 1900|DEF 1000

This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by Tributing 1 "Monk Fighter". This card can attack twice during the same turn.

Master of Oz

EARTH|Level 9|[ Beast / Fusion ]

ATK 4200|DEF 3700

"Big Koala" + "Des Kangaroo"

Mataza the Zapper

DARK|Level 3|[ Warrior / Effect ]

ATK 1300|DEF 800

This card can make a second attack during each Battle Phase. Control of this face-up card on the field cannot switch.

Mazera DeVille

DARK|Level 8|[ Fiend / Effect ]

ATK 2800|DEF 2300

This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by Tributing 1 face-up "Warrior of Zera" on your side of the field while "Pandemonium" is on the field. If "Pandemonium" is on your side of the field when you Special Summon this card, your opponent discards 3 random cards from their hand. If "Pandemonium" is not on your side of the field, this effect is not applied.

Mecha-Dog Marron

LIGHT|Level 4|[ Machine / Effect ]

ATK 1000|DEF 1000

When this card is destroyed by battle and sent to the Graveyard, inflict 1000 damage to both players. When this card on the field is destroyed and sent to the Graveyard except by battle, inflict 1000 damage to your opponent.

Mechanicalchaser

DARK|Level 4|[ Machine / Normal ]

ATK 1850|DEF 800

A hunter that relentlessly pursues its target by order of the Machine King.