"Knightmare", known as "Troymare" (トロイメア, Toroimea) in the OCG, is an archetype that debuted in Flames of Destruction. The archetype is related to, and supported by, the "World Legacy" archetype and is focused on Link Summons and being co-linked. All of the archetype's Link Monsters so far are Fiend.
The "Knightmare" Link monsters have different Attributes and the ones with the four elemental Attributes have a color scheme that corresponds to that Attribute. Their bodies, which appear to be derived from the "Mekk-Knight" monsters, are comprised of a combination of a glowing translucent substance and silvery metallic armor with a gold and black design etched into them. Parts of their armoring and bodies also appear to be made out of charred or blackened junk, mostly weapons. Finally, each one carries a symbol of musical notation somewhere on their body, usually their head.
Troymare appears to be played on the word "Troy" and "mare" (female horse), both are likely referred to "Trojan Horse", given the main strategy of "Iblee" (who is a female monster, fitting "mare" part) by giving her to the opponent and punish them, while Knightmare is played on the word "nightmare" and "mare", with a further connection to the "Mekk-Knight" archetype. The names of "Knightmare" monsters are based on mythological creatures and beings.
|Astro Knightmare Idolee||Idris|
|Knightmare Corruptor Iblee||Iblis||Treble clef|
The main goal of this archetype is to build a field with as many co-linked monsters as possible, to the point of achieving a state of Extra Link. All the "Knightmare" Link monsters revealed so far have effects that activate when they are Link Summoned, by discarding 1 card as cost, and if they were co-linked when those effects were activated - draw 1 card as a bonus; also, they have Continuous Effects that either benefit monsters that are co-linked or burden monsters that are not.
Since they do not require Link Materials of specific Type(s) or Attribute(s), any engine capable of swarming the field with monsters with different names may help Link Summon them. Monsters that are already used in Link-oriented strategies, such as "Cyberse Gadget", "Dotscaper", "Stack Reviver" and "Bitrooper" can be helpful. This also means that Knightmares Phoenix, Cerberus and Unicorn can, and have been, teched into many Extra Decks, even ones not so Link-focussed, just to destroy/spin problematic cards. Indeed, the Link-2s are probably the first widely used Link Monsters without any down-pointing arrows.
Due to their first effect requiring a discard as a cost, they may have synergy with "Fabled" monsters; also, they tend to allow the player to control the field by achieving an Extra Link and disabling the opponent from Special Summon monsters from the Extra Deck. This goal can be further deepened by Special Summoning "Knightmare Corruptor Iblee" to the opponent's field and preventing the opponent from disrupting the "Knightmare" player's strategy by Special Summoning a "Kaiju" monster, for example.
The Link-2 "Knightmare" monsters were designed to provide a blanket protection to their peers, while the Link-3 "Knightmare Unicorn" compensates the huge investment required to build a field with at least 3 co-linked "Knightmares", and the Link-4 "Gryphon" penalizes Special Summoned monsters that are not linked, commonly the opponent's; its effect can be useful against monsters that can bypass the Continuous Effects of the Link-2 "Knightmares", such as "Shinobaron Peacock", "Metaphys Daedalus", etc.
|Knightmare||Link Arrows||Attribute||Trigger Effect upon being Link Summoned||Continuous Effect|
|Mermaid||WATER||Special Summons a "Knightmare" monster from the Main Deck.||Monsters on the field lose 1000 ATK/DEF, unless they are co-linked.|
|Phoenix||FIRE||Destroys an opponent's Spell/Trap Card.||Co-linked monsters on its controller's field cannot be destroyed by battle.|
|Goblin||WIND||Allows 1 additional Normal Summon to a zone it points to during the Main Phase of this turn.||Co-linked monsters on its controller's field cannot be targeted by card effects.|
|Cerberus||EARTH||Destroys an opponent's Special Summoned monster in their Main Monster Zone.||Co-linked monsters on its controller's field cannot be destroyed by card effects.|
|Unicorn||DARK||Shuffles a card on the field into the Deck.||Its controller draws cards for their normal draw during their Draw Phase equal to the number of different "Knightmare" co-linked monsters on the field.|
|Gryphon||LIGHT||Sets a Spell/Trap Card in its controller's Graveyard to their field.||Special Summoned monsters cannot activate their effects, unless they are linked.|
- The most basic weakness of the Deck is the need for a discard as a cost to activate the Link monsters' Trigger Effect. Without the proper setup, this may have the player running out of resources before they can build a solid field; the "Fabled" engine may alleviate this, though. "Gouki" monsters also massively help, by replacing themselves with more "Gouki" cards after being used as Link Material.
- Due to the need of Special Summoning many monsters on the field in order to achieve an Extra Link, or at least having 3 or 4 "Knightmare" monsters co-linked to each other, the Deck may have disadvantage with cards like "Summon Limit", "Maxx "C"", "Vanity's Fiend", etc.
- Also, the "Knightmare" player must control many monsters at once for the strategy to work at its full potential, which may render the Deck vulnerable to mass-removal cards, especially "Evenly Matched", that ignores all blanket protections provided by the "Knightmare" co-linked monsters, as it neither targets nor destroys.
- Even if "Knightmare Iblee" is on the opponent's field, preventing a "Kaiju" monster from disrupting the string of co-linked monsters, "The Winged Dragon of Ra - Sphere Mode" can make a much more huge impact, by removing three of them at once.
- The archetype shares a name with the Mecha used in the popular anime series Code Geass.
- The "Knightmare" Link Monsters wear armors which bear similarities with a "Mekk-Knight" of the same color:
- "Knightmare Mermaid" has a ring attached to its tail which is the same as the ring on the body of "Mekk-Knight Indigo Eclipse".
- "Knightmare Goblin" has waist plate which is similar to the waist armor of "Mekk-Knight Green Horizon".
- "Knightmare Gryphon" has a spiky armor attached on its shoulders which is similar to the spike from the helmet of "Mekk-Knight Purple Nightfall".
- "Knightmare Unicorn" has wing-like armor in the similar fashion to "Mekk-Knight Yellow Star".
- "Knightmare Phoenix" has a helmet which is similar to "Mekk-Knight Red Moon".
- "Knightmare Cerebeus" has a jewel in the center which is similar to "Mekk-Knight Orange Sunset"
|/Assault Modes||Colossal Fighter / Red Dragon Archfiend||Hyper Psychic Blaster / T.G. Halberd Cannon||Doomkaiser Dragon||Arcanite Magician||None Yet||Stardust Dragon|
Summoners (Normal Spell Cards)
|Moonface the Silver
|Leon the Lead
|Salamandra the Steel
|Ouroboros the Bronze
|Ekenas the Mercury
|Aretos the Tin
Tin Spell Circle
|Aliens||Overlord / Mother / Psychic||Shocktrooper / Infiltrator / Warrior||Mars / Telepath||Ammonite / Dog / Grey / Kid / Shocktrooper Mighty/Frame||Hunter / Hypno||Skull|
|Altergeists||Primebanshee / Kidolga / Multifaker / Fifinellag / Dragvirion||Kunquery||Hexstia||Marionetter||Meluseek||Silquitous / Pixiel|
|Aroma||None Yet||Cananga||Bergamot||Jasmine / Angelica / Rosemary||Rosemary||Jar|
|Attribute Boosters (500 ATK▲/400 DEF▼)
(500 ATK▲/500 DEF▲)
(500 ATK▲/400 DEF▼)
(400 ATK▲/200 DEF▼)
Wee Witch's Apprentice
Mystic Plasma Zone
Sword of Dark Destruction
Rising Air Current
|Attribute Reptiles||Umbral Soul||Raging Earth||Firestorm Prominence||Radiant Spirit||Silent Abyss||Destruction Cyclone|
|Attribute Summoners||Mystic Tomato||Giant Rat||UFO Turtle||Shining Angel||Mother Grizzly||Flying Kamakiri #1|
|B.E.S.||Big Core||Covered Core||Big Core MK-2||Big Core MK-3||Crystal Core||Tetran|
Advanced Contact Fusions
|Code / Decode
Black Dragon Ninja
|Senior Silver Ninja
Red Dragon Ninja
|White Ninja / Upstart Golden Ninja
White Dragon Ninja / None Yet
Blue Dragon Ninja
Yellow Dragon Ninja
|Cubic||Vijam / Crimson Nova / Crimson Nova Trinity||Dark Garnex||Blade Garoodia||Duza / Buster Gundil / Indiora Doom Volt||None Yet||Geira Guile|
|Dice Roll Archfiends||Terrorking||Vilepawn||Infernalqueen||Desrook||Darkbishop||Shadowknight|
|The Trojan Horse
|Kaiser Sea Horse
|Star||Yellow||Red||House / White||Blue||Green|
|Elemental HERO Fusion Monsters
(1 "HERO" + 1 matching Attribute)
|Escuridao||Gaia||Nova Master||The Shining||Absolute Zero||Great Tornado|
Lapauila / Lapauila Mana
|Ghost Girls||Ghost Reaper & Winter Cherries||Ghost Belle & Haunted Mansion||Ash Blossom & Joyous Spring||Ghost Ogre & Snow Rabbit||Null Nun & Blooming Dogwood||None Yet|
(Equip Spell Cards)
|Baou / Dreadscythe
Wicked-Breaking Flamberge / Reaper Scythe
Shooting Star Bow
Twin Swords of Flashing Light
Rod of Silence
|Elma / Eatos
Buttefly Dagger / Celestial Sword
|Invoked||Caliga||Magellanica||Purgatrio||Mechaba / Elysium||Cocytus||Raidjin|
|Kaiju||Radian||Kumongous||Dogoran||Jizukiru / Mecha-Dogoran / Thunder King||Gameciel||Gadarla|
|Legendary Planets||Jupiter / Saturn / Pluto / Sun||Terra Firma||Mars||Venus / Uranus||Mercury / Neptune||None Yet|
Level 6 Fusion Monsters
Level 8 Fusion Monsters
Related "Monarch" Spell/Trap Cards
|Caius / Erebus
Caius the Mega
Tenacity / The First
Lucius / Eidos
Granmarg the Mega
Thestalos the Mega
|Zaborg / Ehther
Zaborg the Mega
Strike / The Prime
Mithra / Edea
Mobius the Mega
Raiza the Mega
|Musical Djinns||Maestroke||Temtempo||None Yet||Melomelody||Humhumming||Muzurhythm|
|Mythyrian Numbers||Djinn Buster||Lion Heart / Ronin Raccoon Sandayu||None Yet||Sky Pegasus / Dragluon||Abyss Splash / Crystalzero||None Yet|
Umbral Horror Masquerade
Giant Red Hand
|Battlin' Boxer Star Cestus
Battlin' Boxer Comet Cestus
|Star Seraph Sentry / Masquerade / Galaxy-Eyes Tachyon Dragon
Archfiend Seraph / Neo Galaxy-Eyes Tachyon Dragon
|Silent Honor ARK / Ragnazero
Silent Honor DARK / Ragnafinity
|Odd-Eyes Dragons||Odd-Eyes / Pendulum / Rebellion / Raging / Phantom / Persona / Mirage / Supreme King / Venom / Wing / Performapal Metal Claw / Arc Pendulum / Advance||Gravity||Meteorburst||Saber / Lancer / Revolution||Absolute||Vortex|
|Pendulum Magicians||Stargazer / Timegazer / Xiangke / Timebreaker / Acrobatic / Dragoncaller / Harmonizing / Double Iris / Black Fang / Purple Poison||Dragonpulse||Nobledragon||Xiangsheng / Wisdom-Eye / Dharma-Eye / Performapal Five-Rainbow||Dragonpit||Oafdragon / White Wing|
|Resonators||Dark / Synkron||Clock||Flare / Red / Double / Net||Barrier / Chain / Mirror||Force||Creation|
(1 "Shaddoll" + 1 matching Attribute)
|Signer Dragons||Red Archfiend / Black-Winged||Life Stream||Black Rose||Ancient Fairy||None Yet||Stardust|
Legendary Six Samurai
Secret Six Samurai
|Sky Striker Ace||Raye||Kaina||Kagari||None Yet||Shizuku||Hayate|
|Nitro / Jet
Nitro / Jet
(Continuous Spell/Trap Cards)
|Thunder / Rainbow
Thundery / Rainbowy
|True Draco and True King||All Calamities||Lithosazim / Dreiath III||Agnimazud / Ignis Heat||Metaltron XII / Master Peace / King Master Peace||Bahrstos / Dinomight Knight||Mariamne / Majesty Maiden|
|World Legacy - "World Chalice"
|Beckoned by the World Chalice
Ningirsu the World Chalice Warrior
|Chosen by the World Chalice
Auram the World Chalice Blademaster
|Lee the World Chalice Fairy
|Crowned by the World Chalice
Ib the World Chalice Priestess
|World Chalice Guardragon
Imduk the World Chalice Dragon
|Jiaotu / Taotie
|Bi'an / Zefraxi / Zefraniu||Suanni||Chiwen
Baxia / Chaofeng / Denglong