• This card can be used along with "Iron Core Specimen Lab" as it can Special Summon other "Koa'ki Meiru" monsters that you need for certain conditions. Then, during your End Phase you can throw away your "Koa'ki Meiru" monsters that don't you don't need and protect your "Koa'ki Meiru" monsters that you have Special Summoned by "Koa’ki Meiru Urnight".
  • Two copies of this card can set a high damage setup. Simply Special Summon two "Koa'Ki Meiru" monsters with two "Urnights" and either attack for the game OR tribute three monsters for "Beast King Barbaros", clearing the field. Then, if you want to OTK, you can discard Iron Core to Special Summon "The Tricky", play "Urgent Synthesis" to get back one of the tributed "Meirus" and attack for the game.
  • Use "Winged Rhynos" with this card. If your opponent activates a Trap card you can return "Winged Rhynos" to your hand and use it for "Urnight's" maintenance cost.

Traditional Format

  • A powerful play can be made if you activate "Cold Wave" and follow up by Special Summoning "Koa'ki Meiru Urnight"/"Koa'ki Meiru Maximus". It can be made even more deadly if "Urnight" was already on the field when "Koa'ki Meiru Urnight" resolved: you could Normal Summon another "Koa'ki Meiru Urnight" and Special Summon another monster with his effect preferably one of the rock triplets to lock you opponent out of the game come their next turn provided that you didn't end the game earlier.


 Japanese namePrimary typeTypeAttributeLevelATKDEF
Koa'ki Meiru Beetleコアキメイル・ビートルEffect MonsterInsectEARTH419001500
Koa'ki Meiru Bergzakコアキメイル・ベルグザークEffect MonsterWarriorEARTH42000200
Koa'ki Meiru Boulderコアキメイル・ロックEffect MonsterRockEARTH412001000
Koa'ki Meiru Crusaderコアキメイル・クルセイダーEffect MonsterBeast-WarriorEARTH419001300
Koa'ki Meiru Doomコアキメイル・デビルEffect MonsterFiendWIND31700800
Koa'ki Meiru Dragoコアキメイル・ドラゴEffect MonsterDragonWIND419001600
Koa'ki Meiru Graviroseコアキメイル・グラヴィローズEffect MonsterPlantFIRE419001300
Koa'ki Meiru Guardianコアキメイル・ガーディアンEffect MonsterRockEARTH419001200
Koa'ki Meiru Hydro Barrierコアキメイル・フルバリアEffect MonsterAquaWATER310001900
Koa'ki Meiru Iceコアキメイル・アイスEffect MonsterAquaWATER419001200
Koa'ki Meiru Overloadコアキメイル・オーバードーズEffect MonsterRockEARTH419001200
Koa'ki Meiru Powerhandコアキメイル・パワーハンドEffect MonsterMachineEARTH421001600
Koa'ki Meiru Prototypeコアキメイル・テストベッドEffect MonsterRockEARTH418001800
Koa'ki Meiru Sandmanコアキメイル・サンドマンEffect MonsterRockEARTH419001200
Koa'ki Meiru Sea Pantherコアキメイル・シーパンサーEffect MonsterSea SerpentWATER419001200
Koa'ki Meiru Speederコアキメイル・スピードEffect MonsterMachineWIND312002200
Koa'ki Meiru Tornadoコアキメイル・トルネードEffect MonsterWinged BeastWIND415001200
Koa'ki Meiru Wallコアキメイル・ウォールEffect MonsterRockEARTH419001200
Koa'ki Meiru War Armsコアキメイル・ウォーアームズEffect MonsterWarriorEARTH414001200

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