"Mekk-Knight", known as "Jack-Knights" (ジャックナイツ, Jakkunaitsu) in the OCG, is an archetype of LIGHT monsters debuting in Extreme Force. The archetype is both related to and supported by the "World Legacy" archetype. All of its Main Deck members are Psychic monsters, while its Extra Deck members (with the exception of "Mekk-Knight of the Morning Star') are Cyberse monsters.
Although the Japanese name of the "Mekk-Knight" archetype is only ジャックナイツ, its members' names are actually consist the words
Their names were mostly based on sky's phenomenon and other astrological-related objects.
All "Mekk-Knight" Main Deck monsters (except "Mekk-Knight Avram", Normal Monster) share the following effect:
- "If 2 or more cards are in the same column, you can Special Summon this card (from your hand) to that column."
Mekk-Knight Monsters rely on Special Summoning from the Hand and the Search effects like "Purple Nightfall" and "Blue Sky"; "Purple Nightfall" and "Indigo Eclipse" also have an effect to move a Monster out the way for another Special Summon being just as crucial to dump the Hand fast.
They can also modify their formation to fit almost every situation at will, mostly to enable the negation effects of "World Legacy Key", "World Legacy Whispers", and "World Legacy's Secret". "Mekk-Knight Blue Sky" and "Mekk-Knight Purple Nightfall" are the most important monsters within the deck due to their search effects, and together with "World Legacy's Memory", allow them to keep Summoning monsters without pause and use them to either Link Summon, or straight-up inflict damage. Due to how this deck's mechanic works, this deck generally performs better when going second, using going second cards like "Gameciel, the Sea Turtle Kaiju" and "Mind Control". However the use of "Link Spider" with "Avram" and "Salamangreat Almiraj" with "Ipiria" to load zones in a column can open up certain plays.
Most iterations of the deck also employ "Aleister the Invoker" (along with "Invocation", "Magical Meltdown", and the "Invoked" Fusion Monsters), not only to increase their offensive power but also to better safeguard their field presence (courtesy of "Invoked Mechaba"). This variant is commonly called Invoked Mekk-Knight. Other than that, this deck's core components (consisting of "Blue Sky", "Purple Nightfall", and "Indigo Eclipse", with a base count of 2, 3, and 1, respectively) can also be used in other decks that needs more swarming and offensive power.
- Chimeratech Fortress Dragon
- Chimeratech Megafleet Dragon
- Invoked Mechaba
- Other Invoked monsters, primarily Invoked Purgatrio and Invoked Caliga
- World Legacy Key
- World Legacy's Memory
- World Legacy Scars
- D.D.R. - Different Dimension Reincarnation
- Magical Meltdown
- Sacred Sword of Seven Stars
- Unexpected Dai
- World Legacy Succession
- Mind Control
- Instant Fusion
- Super Polymerization
- Dark Hole x1
- Downbeat x1
- Foolish Burial x1
- Harpie's Feather Duster x1
- Instant Fusion x2
- Monster Reborn x1
- Mystical Space Typhoon x1
- One for One x1
- One-Time Passcode x1
- World Legacy Key x2
- World Legacy Scars x1
- Soul Charge x1
- Transmodify x1
Example Tournament Decks
- Shannon Long's Pure Mekk-Knights - YCS Fort Worth 2019 Top 32
- Arkadiy Arkonov's Invoked Mekk-Knights - Brookyln Regionals November 2019
- Cards that prevent the player from Special Summoning can hurt the Deck's capability to swarm. Examples include the "Vanity's" series, "Archlord Kristya", "Fossil Dyna Pachycephalo", etc.
- Since they rely on banishing for some of their effects ("Purple Nightfall", "Red Moon", and "Yellow Star"), cards like "Artifact Lancea" and "Chaos Hunter" can effectively bring them into a screeching halt.
- This Deck has some similar traits with "The Weather" archetype: