Code monsters are my new creation. They have a brown border and are the main feature in Yu-Gi-Oh! Throughout the Years. They are Special Sumoned from your Extra Deck (a Code Summon) by Cracking the Code Continuous Spell Card and declaring a specific card type (Monster, Spell or Trap). Draw a card. If you get it right, destroy it and Special Summon a Code monster of your choice. They work by giving your opponent's Monsters negative effects. The problem is that they also use guessing for their effects to activate.
This card may only be Special Summoned (from the Extra Deck) by a Code Summon. Once per turn, you can declare 1 type of monster (eg.Beast-Warrior, Psychic etc.). Draw a card. If you drew the declared type, you can target one monster your opponent controls: It's effect is negated and instead is treated as "During each of your End Phases, tribute 2 monsters on your side of the field or take 2000 damage".