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(If a monster with an A-Counter battles an "Alien" monster, it loses 300 ATK and DEF for each A-Counter during damage calculation only.) Alien Mars X FIRE Level 3 [ ReptileEffect ] ATK 1000 DEF 1000 The effects of Effect Monsters with A-Counters are negated, except for "Alien Mars".

In an attempt to keep this list from being too massive, I have decided to exclude theme deck Holo exclusives and box topper holos

1 Quick Start Rulebook

Interacting with your opponent with negates from the hand and on the field is the only way to play

You can only use each effect of "Chasma, Dragon Ruler of Auroras" once per turn

While the most valuable of these cards are usually found in older, rarer sets, more recent additions can also become quite valuable