Card Database

Medusa Worm

EARTH|Level 2|[ Rock / Effect ]

500|600

Once per turn, you can flip this card into face-down Defense Position. When this card is Flip Summoned, destroy 1 monster on your opponent's side of the field.

Mefist the Infernal General

DARK|Level 5|[ Fiend / Effect ]

1800|1700

If this card attacks a Defense Position monster, inflict piercing battle damage. If this card inflicts battle damage to your opponent: Make your opponent discard 1 random card.

Megamorph

Spell|Equip

While your LP is lower than your opponent's, the equipped monster's ATK becomes double its original ATK. While your LP is higher, the equipped monster's ATK becomes half its original ATK.

Megarock Dragon

EARTH|Level 7|[ Rock / Effect ]

-1|-1

This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by removing from play a Rock-Type monster(s) in your Graveyard. The original ATK and DEF of this card become the number of Rock-Type monsters you removed from play when you Special Summoned this card x 700.

Megasonic Eye

DARK|Level 5|[ Machine / Normal ]

1500|1800

Made of mysterious metal, this monster is a doomsday machine from the edge of the universe.

Mega Thunderball

WIND|Level 2|[ Thunder / Normal ]

750|600

Rolls along the ground releasing bolts of electricity to attack its enemies.

Mega Ton Magical Cannon

Spell|Normal

Remove 10 Spell Counters on your side of the field. Destroy all cards on your opponent's side of the field.

Melchid the Four-Face Beast

DARK|Level 4|[ Fiend / Normal ]

1500|1200

This monster has four different masks for four different attacks.

Mermaid Knight

WATER|Level 4|[ Aqua / Effect ]

1500|700

While "Umi" is face-up on the field, this card can attack twice during the same Battle Phase.

Mesmeric Control

Spell|Normal

During your opponent's next turn after you activate this card, your opponent cannot change the battle positions of monsters, except with a card effect.