{| border="1" cellspacing="0" width="100%"{Infobox set|-! valignimage ="center" style="background:#800000; color:#FFFF00" colspan="4" | Introduction|-| colspan="4" |'''Invincible Fortress''' (SD7) is the seventh TCG [[Structure Deck]]. It is centered around [[Rock]]-[[Type]] monsters and [[Direct Damage]] through card [[effect]]s and high defense monsters. Featured cards include "[[Exxod, Master of The Guard]]", "[[Great Spirit]]", and "[[Canyon]]"DeckEN.png
| en_name = Structure Deck: Invincible Fortress
| fr_name = Deck de Structure: Forteresse Invincible
''Create an unbreakable defense with the mighty [[Earth]] [[Monster]]s in the "Invincible Fortress" | type = [[Structure Deck]]! These [[monster]]s can be | prefix = SD7| size = 40| cover_card = [[Summon]]ed to unleash their powerful [[effect]]sExxod, and then returned to [[face-downMaster of The Guard]] [[Defense Position]] to protect your [[Life Points]] with their incredible [[DEF| ja_database_id = 2201014| en_database_id = 14402001|Defense Points]]. "Invincible Fortress" is ready to play right out of the box and is great for new Duelists as well as experienced players. Each [[Deck]] contains 40 cards, including an all-new [[Ultra Rare]] [[monster]], a rulebook, and a Dueling Guide to help Duelists improve the Deck and their game!fr_database_id = 34402001{| alignde_database_id =right24402001| -- [http://www.upperdeckentertainment.com/yugioh/en/products/structuredecks/SD7.aspx Upper Deck Entertainment]it_database_id = 44402001|}ko_database_id = 73303002
|-jp_release_date = December 8, 2005! valign| kr_release_date ="center" style="background:#800000; color:#FFFF00" colspanOctober 11, 2007| na_release_date ="4" | Deck Specifications May 15, 2006|-eu_release_date = | colspanoc_release_date ="1" |<center>[[Image:StructureDeckSD7-JP.jpg|thumb|center]]</center>fr_release_date = May 15, 2006| valignde_release_date ="top" colspan="3" May 15, 2006 |<P Alignit_release_date =center>[[Image:JPN.png]]</P>Deck Name: <b>Invincible Fortress 「守護神の砦」</b><br>Deck ID: <b>SD7</b><br>May 15, 2006
OCG Release Date: <b>December 8, 2005</b><br>OCG Deck Size: <b>32 Cards</b> (40 cards in Master Set)<br>OCG Breakdown: 15 [[Effect Monster Card|Effect]], 10 prev = ''[[Spell CardStructure Deck: Spellcaster's Judgment|SpellSpellcaster's Judgment]], and 7 [[Trap Card''|Trap]]<br>curr = ''Invincible Fortress''OCG Rarity Breakdown: 1 | next = ''[[Ultra RareStructure Deck: Lord of the Storm|UltraLord of the Storm]], 31 [[Common]]<br>''}}
'''[[Set Gallery:''Structure Deck 7: Invincible Fortress (OCG-JP)|''Invincible Fortress'' OCG Gallery' is a [[Structure Deck]]in the '''|-| colspan="1" |<center>[[Image:StructureDeckSD7Yu-Gi-EN.jpg|thumb|centerOh! Official Card Game]]</center>| valign="top" colspan="3" |<P Align=center>'' (''OCG'') and ''[[Image:USA.pngYu-Gi-Oh! Trading Card Game]] '' (''TCG''). It is the seventh deck in the ''OCG''{{'}}s Structure Deck series (fifteenth including the Character Structure Decks), following ''[[ImageStructure Deck:EUR.pngSpellcaster's Judgment]]</P>Deck Name: <b>Invincible Fortress</b><br>Deck ID: <b>SD7</b><br>''. In the ''TCG'', it is the seventh deck.
TCG Release Date{{Quote|[http: <b>May 10, 2006</b><br>TCG /www.upperdeckentertainment.com/yugioh/en/products/structuredecks/SD7.aspx Upper Deck Size: <b>32 Cards</b> (40 cards Entertainment]|Create an unbreakable defense with the mighty [[Earth]] [[Monster]]s in Master Set)<br>TCG Breakdown: 15 the "Invincible Fortress" [[Structure Deck]]! These [[monster]]s can be [[Summon]]ed to unleash their powerful [[Effect Monster Card|Effecteffect]]s, 10 and then returned to [[face-down]] [[Defense Position]] to protect your [[Life Points]] with their incredible [[Spell CardDEF|SpellDefense Points]], . "Invincible Fortress" is ready to play right out of the box and 7 is great for new Duelists as well as experienced players. Each [[Trap Card|TrapDeck]]<br>TCG Rarity Breakdown: 1 contains 40 cards, including an all-new [[Ultra Rare|Ultra]], 31 [[Commonmonster]]<br>, a rulebook, and a Dueling Guide to help Duelists improve the Deck and their game!}}
'''[[Set Gallery:Although this Structure Deck 7: Invincible Fortress (TCG-EN)was not released in Spanish, it is listed on the Spanish version of the official card database.<ref>{{cite web|''Invincible Fortress'' TCG Gallery]]'''url={{database link|set|54402001|-! valignlink="center" styleno|lang="background:#800000; color:#FFFF00" colspanes}}|title="4" BARAJA DE ESTRUCTURA FORTALEZA INVENCIBLE| Deck Raritieslanguage=Spanish|-publisher=[[Konami]]| valign="top" colspanaccessdate="2" |December 21, 2016}}</ref>
==Features==The deck features [[Earth]] monsters, [[Direct Damage]] through card [[effect]]s, high defense monsters and returning the opponent'''''Japan'''''s monsters to their hand. Featured cards include "[[Exxod, Master of The Guard]]", "[[Great Spirit]]", and "[[Canyon]]".