Introducing Code Monsters
Example card:

Deadlights Big Bang Dragon
2+ Effect Monsters
Gains 500 ATK for each Code Counter on it during the Battle Phase. When a card or effect is activated from the hand or GY (Quick Effect): You can remove 1 Code Counter from this card; negate the activation, and if you do, banish that card.

What are Code Monsters?
Code Monsters are a new kind of monster that is stored in the Outer Deck, waiting to be called to action.

Code Monsters don't have Levels or Ranks, but have a Code Number. When Code Monsters are Code Summoned, place Code Counters on your monster. Code Monsters can also gain counters if they're not even Effect Monsters.

Because of their properties, Code Monsters cannot even be changed to face-down Defense Position.

How to Code Summon
Send face-up materials from your field to the GY up to the Code Number of the monster you are Summoning. Use other Code Monsters as materials to reduce the number of monsters used. For example, this card has a Code Number of 3 and its material requirement is "2+ Effect Monsters". So, you need to either: Send 3 Effect Monsters you control to the GY or send 1 CODE-2 Effect Monster and 1 Effect Monster you control to the GY.

Q: Can Code Monsters gain Code Counters if Special Summoned by a card effect.
A: No. A Code Monster must be Code Summoned to place Code Monsters on itself.

Q: Can Code Monsters place Code Counters on itself even if its effects are negated?
A: Yes. If a non-Effect Code Monster can gain counters on itself, so can an Effect Monster with its effects negated, provided it was properly Summoned first.

Q: Can Tokens be used as Code Material.
A: If the material requirements permits it so, then yes.

Q: Can Book of Moon target a Code Monster.
A: No, it cannot.

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