Struggle of Chaos is a Japanese Booster Pack in the Yu-Gi-Oh! Official Card Game.

In other languages, this set is amalgamated with Mythological Age to create Legacy of Darkness.


Struggle of Chaos contains many Dragon, Fiend and Warrior-Type monsters and support. It also contains an Ultimate Rare reprint of "Summoned Skull".

Highly sought after cards include "Dark Ruler Ha Des", "Exiled Force", "Dark Balter the Terrible", "Ryu Senshi", "Fiend Skull Dragon" and "Reinforcement of the Army".

Yami Yugi's appearance on the cover of this booster pack is taken from the title page for Yu-Gi-Oh! Duelist Duel 148: "One-Turn Kill". This was also later used for Duelist Legacy Volume.5 and Ancient Sanctuary.


Each pack contains 5 cards and each box contains 30 packs.

The set contains 51 cards or 54 in the Master Set. This is comprised of:



Set number English name Japanese name Rarity Category
SC-01 Dark Ruler Ha Des めいかいおう ハ・デス Ultra Rare
Ultra Parallel Rare
Effect Monster
SC-02 Dark Balter the Terrible じん ダーク・バルター Super Rare Fusion Monster
SC-03 Lesser Fiend レッサー・デーモン Rare Effect Monster
SC-04 Possessed Dark Soul Common Effect Monster
SC-05 Winged Minion ハ・デスの使つか Common Effect Monster
SC-06 Skull Knight #2 スカル・ナイト Common Effect Monster
SC-07 Ryu-Kishin Clown ガーゴイルのどう Common Effect Monster
SC-08 Twin-Headed Wolf ツインヘッド・ケルベロス Common Effect Monster
SC-09 Opticlops レッド・サイクロプス Common Normal Monster
SC-10 Bark of Dark Ruler めいおうほうこう Common Normal Trap Card
SC-11 Fatal Abacus 死の演算盤デス・カリキュレーター Rare Continuous Trap Card
SC-12 Life Absorbing Machine せいめいきゅうしゅうそう Common Continuous Trap Card
SC-13 The Puppet Magic of Dark Ruler めいかいりゅうぐつじゅつ Common Normal Spell Card
SC-14 Soul Demolition 魂粉砕ソウル・クラッシュ Common Continuous Trap Card
SC-15 Double Snare ダブルトラップ Common Normal Spell Card
SC-16 Freed the Matchless General 無敗將軍ジェネラル フリード Ultra Rare
Ultra Parallel Rare
Effect Monster
SC-17 Throwstone Unit とうせきたい Common Effect Monster
SC-18 Marauding Captain たいちょう Common Effect Monster
SC-19 Ryu Senshi ドラゴン・ウォリアー Super Rare Fusion Monster
SC-20 Warrior Dai Grepher せんダイ・グレファー Common Normal Monster
SC-21 Mysterious Guard せいなるまも Common Effect Monster
SC-22 Frontier Wiseman へんきょうだいけんじゃ Common Effect Monster
SC-23 Exiled Force ならずものようへいたい Common Effect Monster
SC-24 The Hunter with 7 Weapons ななつのつハンター Common Effect Monster
SC-25 Shadow Tamer デーモン・テイマー Rare Effect Monster
SC-26 Dragon Manipulator ドラゴン・ライダー Common Effect Monster
SC-27 The A. Forces れんごうぐん Common Continuous Spell Card
SC-28 Reinforcement of the Army ぞうえん Common Normal Spell Card
SC-29 Array of Revealing Light ひかりふうじん Rare Field Spell Card
SC-30 The Warrior Returning Alive せんせいかん Common Normal Spell Card
SC-31 Ready for Intercepting げいげきじゅん Common Normal Trap Card
SC-32 A Feint Plan ようどうせん Common Normal Trap Card
SC-33 Emergency Provisions じょうしょく Common Quick-Play Spell Card
SC-34 Tyrant Dragon Ultra Rare
Ultra Parallel Rare
Effect Monster
SC-35 Spear Dragon スピア・ドラゴン Rare Effect Monster
SC-36 Spirit Ryu Common Effect Monster
SC-37 The Dragon Dwelling in the Cave どうくつひそりゅう Common Normal Monster
SC-38 Lizard Soldier リザードへい Common Normal Monster
SC-39 Fiend Skull Dragon デス・デーモン・ドラゴン Super Rare Fusion Monster
SC-40 Cave Dragon グランド・ドラゴン Common Effect Monster
SC-41 Gray Wing グレイ・ウイング Common Effect Monster
SC-42 Troop Dragon 軍隊竜アーミー・ドラゴン Common Effect Monster
SC-43 The Dragon's Bead ドラゴンのほうじゅ Rare Continuous Trap Card
SC-44 A Wingbeat of Giant Dragon きょりゅうばたき Common Normal Spell Card
SC-45 Dragon's Gunfire りゅうえんだん Common Normal Spell Card
SC-46 Stamping Destruction スタンピング・クラッシュ Common Normal Spell Card
SC-47 Super Rejuvenation ちょうさいせいのうりょく Common Quick-Play Spell Card
SC-48 Dragon's Rage りゅうげきりん Common Continuous Trap Card
SC-49 Burst Breath バーストブレス Common Normal Trap Card
SC-50 Luster Dragon #2 エメラルド・ドラゴン Super Rare Normal Monster
SC-51 Summoned Skull デーモンのしょうかん Ultimate Rare Normal Monster