| fr_name = Cauchemar Sans Fin| de_name = Nie endender Albtraum

| ko_name = 깨어나지 않는 악몽| pt_name = Pesadelo Interminável| es_name = Pesadilla Sin Fin

| ko_name = 깨어나지 않는 악몽| ko_rr_name = Kkae-eonaji Anh-neun Akmong| sc_name = 无法唤醒的噩梦| image = UnendingNightmare-MACRSGX3-EN-ScRC-1E.png

| passcode password = 69452756

| lore = You can [[pay]] 1000 [[LP]], then [[target]] 1 [[face-up]] [[Spell Card|Spell]]/[[Trap Card|Trap]] on the [[field]]; [[destroy]] it. You can only [[activate]] this [[Card effect|effect]] of "Unending Nightmare" once per [[Chain]].| fr_lore = Vous pouvez payer 1000 LP, puis ciblez 1 Magie/Piège face recto sur le Terrain ; détruisez-le. Vous ne pouvez activer cet effet de "Cauchemar Sans Fin" qu'une fois par Chaîne.| de_lore = Du kannst 1000 LP zahlen und dann 1 offene/n Zauber/Falle auf dem Spielfeld wählen; zerstöre ihn oder sie. Du kannst diesen Effekt von „Nie endender Albtraum“ nur einmal pro Kette aktivieren.| it_lore = Puoi pagare 1000 LP, poi scegliere come bersaglio 1 Magia/Trappola scoperta sul Terreno; distruggila. Puoi attivare questo effetto di "Incubo Infinito" una sola volta per Catena.| pt_lore = Você pode pagar 1000 PV e, depois, escolha 1 Magia/Armadilha com a face para cima no campo; destrua-a. Você só pode ativar este efeito de "Pesadelo Interminável" uma vez por Corrente.| es_lore = Puedes pagar 1000 LP, y después selecciona 1 Mágica/Trampa boca arriba en el Campo; destrúyela. Sólo puedes activar este efecto de "Pesadilla Sin Fin" una vez por Cadena.| ja_lore = 「醒めない悪夢」の効果は同一チェーン上では１度しか発動できない。①：１０００ＬＰを払い、フィールドの表側表示の魔法・罠カード１枚を対象としてこの効果を発動できる。そのカードを破壊する。このカード名の効果は同一チェーン上では１度しか発動できない。①：１０００ＬＰを払い、フィールドの表側表示の魔法・罠カード１枚を対象としてこの効果を発動できる。そのカードを破壊する。| ko_lore = "깨어나지 않는 악몽"의 이 카드명의 효과는 동일한 체인 위에서는 1번밖에 발동할 수 없다. ①: 1000 LP를 지불하고, 필드의 앞면 표시 마법 / 함정 카드 1장을 대상으로 하여 이 효과를 발동할 수 있다. 그 카드를 파괴한다.| sc_lore = 此卡名的效果在同一连锁上仅可发动１次。<br />①：支付１０００LP，以场上的１张表侧表示的魔法・陷阱卡为对象可以发动此效果。将该卡破坏。

{{Card table set/header|en}}{{Card table set|MACR-EN079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-EN104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-EN038; Structure Deck: Shaddoll Showdown; CommonSGX3-ENG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-EN005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|fr}}{{Card table set|MACR-FR079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-FR104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-FR038; Structure Deck: Shaddoll Showdown; CommonSGX3-FRG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-FR005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|de}}{{Card table set|MACR-DE079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-DE104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-DE038; Structure Deck: Shaddoll Showdown; CommonSGX3-DEG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-DE005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|it}}{{Card table set|MACR-IT079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-IT104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-IT038; Structure Deck: Shaddoll Showdown; CommonSGX3-ITG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-IT005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|pt}}{{Card table set|MACR-PT079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-PT104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-PT038; Structure Deck: Shaddoll Showdown; CommonSGX3-PTG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-PT005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|sp}}{{Card table set|MACR-SP079|; Maximum Crisis|; Secret Rare}}{{Card table set/footer}}BLRR-SP104; Battles of Legend: Relentless Revenge; Ultra RareSDSH-SP038; Structure Deck: Shaddoll Showdown; CommonSGX3-SPG16; Speed Duel GX: Duelists of Shadows; CommonSTP6-SP005; Speed Duel Tournament Pack 6; Ultra Rare

{{Card table set/header|jp}}{{Card table set|MACR-JP079|; Maximum Crisis|; Super Rare}}{{Card table set|MACR-JP079|Maximum Crisis|, Secret Rare}}{{Card table set/footer}}SD37-JP038; Structure Deck: Rebirth of Shaddoll; Common

{{Card table set/header|kr}}{{Card table set|MACR-KR079|; Maximum Crisis|; Super Rare}}, Secret RareSD37-KR038; Structure Deck: Rebirth of Shaddoll; Common{{Card table set|MACRsc_sets = SD37-SC038; Structure Deck: Rebirth of Shaddoll; Common24SP-KR079|Maximum Crisis|Secret SC203; Entry Pack 2024 Vol.2; Super Rare}}{{Card table set/footer}}| life_points archseries = Pays Life Points for costRisebell| m/s/t =

| life_points = Pays Life Points for cost| misc = * Once per Chain| tcg_speed_duel_status = Unlimited