Jackknife

"The first Jackknife Dragon. He has predicted the further evolution between dragons and humans. That name is Neo Dragon..."

- Jackknife Braveheart's flavor

"Jackknife" (ジャックナイフ Jakkunaifu) is an archetype.

Playstyle
The effects of most Jackknife cards involves paying gauge in order to call another version of "Jackknife" on top of the original or another version. The effects of some "Jackknife" monsters can only be activated when they are called or positioned to the left or right monster areas.

List of Sets containing "Jackknife" Cards

 * Booster Set 1: Dragon Chief
 * Booster Set 3: Drum's Adventures
 * Booster Set 4: Darkness Fable
 * Character Pack 1: Burning Valor
 * D Booster Set 1: Unleash! Impact Dragon!!
 * D Start Deck 2: Cross Dragoner
 * Extra Booster 2: Great Clash!! Dragon VS Danger
 * H Booster Set 2: Galaxy Burst
 * H Extra Booster 4: Buddy Allstars+
 * H Special Series 1: Super Strong!! Buddy Rare Triple Deck
 * Trial Deck 3: Dragonic Force

Items

 * Jackknife "Gold Ritter"

Spells

 * Jackknife Braveheart
 * Jackknife Charge
 * Jackknife Gift
 * Jackknife Joint

Size 1

 * Jackknife Dragon, "Baby"

Size 2

 * Aspiration Existence, Bal Dragon & Jackknife
 * Fifth Omni Blade Dragon Lord, Jackknife "Emperor"
 * Jackknife "Aggressor"
 * Jackknife "Anzestor"
 * Jackknife "Beistand"
 * Jackknife "Berserker"
 * Jackknife "Burn Energy"
 * Jackknife "Dispersal"
 * Jackknife "Jaeger"
 * Jackknife "Savior"
 * Jackknife "Thunder Storm"
 * Jackknife "Neo Gold Ritter"
 * Jackknife Dragon
 * Jackknife Drum
 * Jackknife, "Drum Bunker"
 * Jackknife, "Gewalt"
 * Pizza Party! Bal Dragon & Jackknife

Size 3

 * Jackknife "10000"
 * Jackknife Dragon Stragrite the X

Size 1

 * Star Guardian, Jackknife "SD"

Size 2

 * Jackknife "Overwrite"
 * Jackknife, "Neo Aggressor"
 * Jackknife, "Superior Plasma"
 * Radiant Guardian, Jackknife "Aster"
 * Star Dragon of Hope, "Jackknife Aster"
 * Star Dragoner, Jackknife
 * Star Guardian, Jackknife

Size 3

 * Star Dragon of Bonds, Jackknife
 * Star Guardian, Jackknife "Full Burst"

Size 2

 * Jackknife, "Astro Guardner!"
 * Jackknife "Dragoner Wall!"
 * Jackknife "Full Liberate Cannon!"

Items

 * Jackknife "Gold Ritter"

Spells

 * Jackknife Braveheart
 * Jackknife Charge
 * Jackknife Gift
 * Jackknife Joint

Size 1

 * Bushknife Dragon
 * Circleknife Dragon
 * Jackknife Dragon, "Baby"

Size 2

 * Jackknife "Aggressor"
 * Jackknife "Anzestor"
 * Jackknife "Beistand"
 * Jackknife "Burn Energy"
 * Jackknife "Dispersal"
 * Jackknife "Jaeger"
 * Jackknife "Savior"
 * Jackknife "Thunder Storm"
 * Jackknife "Neo Gold Ritter"
 * Jackknife Dragon
 * Jackknife, "Gewalt"

Items

 * Cosmo Saber, Gold Ritter
 * Radiant Saber, Providence
 * Twin Star, Jack & Fang

Spells

 * Buddy Lights (card)
 * Dragoners Beat
 * Star Jack Repair

Size 1

 * Dragonarms, Radiant Cannon
 * Dragonarms, Radiant Scudo
 * Jackarms, J・Igniter
 * Jackarms, J・Thruster

Trivia

 * This series is named for the Jackknife, referencing Jackknife Dragon's ability to act as several monsters in one.