Code of the Duelist Card List and Set Guide

Overview

Code of the Duelist released August 3, 2017, with 100 cards under the COTD set code: 44 Commons, 4 Short Prints, 20 Rares, 14 Super Rares, 10 Ultra Rares and 8 Secret Rares.

98 of the 100 cards were new to the TCG. The other two have an earlier 2017 printing in the catalog.

It is the first core booster set of the VRAINS era and has ten Link Monsters, including Firewall Dragon and Topologic Bomber Dragon. World Chalice gets eleven cards, the Lightsworn line nine new Twilightsworn and Lightsworn cards, Trickstar six, and Vendread and Gouki five each.

Cards and rarities

Code of the Duelist has 100 set codes, each starting COTD-EN and printed under the artwork on the right. Where a card comes at more than one rarity, every version shares its code, so the table counts set codes at each rarity and a code printed at two rarities is counted twice.

Each set code has one rarity, so the 100 set codes are also 100 printings. Set completion in TurnZero HQ counts the distinct set codes you own against the set's total, so a card printed at two rarities counts once, with an every-rarity count beside it for collectors chasing each version. How set completion works →

Archetypes

World Chalice and Trickstar are the new themes with the most cards, and both are built around Link Monsters. Twilightsworn adds DARK Lightsworn monsters.

Trickstar Candina

COTD-EN008

When Normal Summoned it adds a Trickstar card from your Deck, and deals 200 damage each time your opponent activates a Spell or Trap.

Trickstar Reincarnation

COTD-EN068

A Trap that banishes your opponent's hand and has them draw the same number, then banishes itself from the GY to revive a Trickstar.

World Chalice Guardragon

COTD-EN021

Sends itself from your hand or field to negate a card that targets your linked monster, and banishes itself from the GY to revive a Normal Monster into a zone a Link Monster points to.

Lumina, Twilightsworn Shaman

COTD-EN026

A Twilightsworn monster that banishes a Lightsworn from your hand or GY to Special Summon another banished Lightsworn, and mills 3 when your other Lightsworn effects activate.

Vendread Houndhorde

COTD-EN000

A Vendread that revives itself from the GY by discarding a Vendread card, and gives a Vendread Ritual Monster made with it the power to banish a Spell or Trap.

Topologic Bomber Dragon

COTD-EN046

A Link-4 that destroys every monster in the Main Monster Zones whenever a monster is Special Summoned to a zone a Link Monster points to, and burns for the ATK of monsters it attacks.

Cards worth knowing

Firewall Dragon is the card most players know from this set. D/D/D Wave High King Caesar, the next most valuable, is Forbidden under the current list.

Firewall Dragon

COTD-EN043

A Link-4 for 2+ monsters that once returns monsters on the field or in the GY to the hand, one for each monster co-linked to it, and Special Summons a Cyberse from your hand when a monster it points to leaves.

Rescue Ferret

COTD-EN029

Shuffles itself into the Deck to Special Summon monsters from your Deck with total Levels of 6 into zones a Link Monster points to, with effects negated, until the End Phase.

D/D/D Wave High King Caesar

COTD-EN042

A Rank 6 D/D/D that negates effects that Special Summon. It is Forbidden under the current list.

Traptrix Mantis

COTD-EN030

When Normal Summoned it adds a Traptrix monster from your Deck. It is unaffected by Hole Normal Traps and can return one of your Set Spells or Traps to the hand to Set another.

The chase card: Firewall Dragon

Firewall Dragon

COTD-EN043

Rarity Secret Rare

Set code COTD-EN043

1st Edition market price, October 22, 2026 $11.70

The Secret Rare Firewall Dragon (COTD-EN043) is Code of the Duelist's chase card, at $11.70 on October 22, 2026. The Super Rare D/D/D Wave High King Caesar was next at $7.62.

It is a Link-4 LIGHT Cyberse Link Monster for 2 or more monsters, with 2500 ATK. Once while face-up it can return monsters on the field or in the GY to the hand, up to the number of monsters co-linked to it, and when a monster it points to is destroyed by battle or sent to the GY it Special Summons a Cyberse monster from your hand.

It is printed only as a Secret Rare in this set.

Rarity is in the foil rather than the set code, so check it before you price the copy in your hand. Reading the set code and rarity →

Chase cards and prices

Prices are very low past the top two. Every other card was under $2.30 on October 22, 2026, and 96 of the 100 were under $1.

These are TCGplayer's 1st Edition market prices on October 22, 2026. They move daily, so treat them as a snapshot. Each card's page shows today's price for every printing. How Yu-Gi-Oh! card prices work →

Code of the Duelist card list

Every set code in Code of the Duelist, in set code order, with each rarity it is printed at: 100 set codes in all, as listed in TurnZero HQ's catalog on October 23, 2026. Each name goes to that card's page, with today's price for every printing.

Playing it

Two cards in Code of the Duelist are on the Forbidden & Limited List as of October 23, 2026. Supreme King Dragon Starving Venom and D/D/D Wave High King Caesar are Forbidden.

The set came out when Link Monsters were new, so many of its cards care about where Link Monsters point: World Chalice monsters and Rescue Ferret Summon into those zones, and Topologic Bomber Dragon punishes Summons into them.

Deck building rules and the Forbidden & Limited List →

Frequently Asked Questions