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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 (ひょう) () するブラッド・ソウル 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 タイラント・ドラゴン 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 スピリット・ドラゴン 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