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{{Infobox archetypearchseries| cut_from_names = true| image = IronCoreofKoakiMeiru-TF04MADU-JPEN-VG-artwork.png| ja_name = コアキメイル| caption = "[[Iron Core of Koa'ki Meiru]]"| romaji = Koakimeiru| trans = Core Chimail| fr_name = Koa'ki Meiru| de_name = Koa'ki Meiru| it_name = Koa'ki Meiru| ko_name = 코아키메일의코아키메일| ko_romanized = Koakimeil-Ui| ko_trans = Koa Chimail| pt_name = Koa'ki Meiru| es_name = Koa'ki Meiru| sets =

* [[Primal Origin]]* [[Secrets of Eternity]]* [[Rise of the Duelist]]| tcg =* [[Duelist Pack Collection Tin 2009]]* [[Stardust Overdrive Sneak Peek Participation Card]]* [[Turbo Pack: Booster Two]]* [[Turbo Pack: Booster Three]]* [[Battle Pack 3: Monster League]]* [[Secret Slayers]]* [[Battles of Legend: Armageddon]]* [[Battles of Legend: Crystal Revenge]]| ocg =* [[V Jump June 2009 promotional cardscard]]* [[Extra Pack Volume 3]]

* [[Primal OriginDuelist Edition Volume 3]]* [[Duelist Edition Volume 4]]* [[Tournament Pack 2020 Vol.2]]| korea =* [[Premium Pack Vol.5]]* [[Advanced Event Pack 2019 Vol.1]]| manga = [[Yu-Gi-Oh! 5D's (manga)|Yu-Gi-Oh! 5D's]]

 "'''Koa'ki Meiru'''", Japanese for "'''Core Chimail'''" (コアキメイル ''Koakimeiru''), a combination of the words "Core", "Chimera" and "Mail"), sometimes romanized as "'''Core Chimair'''" (a combination of the words "Core" and "Chimera,") is an [[archetype]] of cards from debuted in ''[[Raging Battle]]'', ''[[Ancient Prophecy]]'', ''[[Stardust Overdrive]]'', ''[[Absolute Powerforce]]'' and ''[[The Shining Darkness]]''. The support card "[[Koa'ki Ring]]" and other [[Anti-Meta]] cards appear in ''[[Starstrike Blast]]''.==Lore==The majority of their effects center around manipulating the "[[Iron Core of Koa'ki Meiru]]" or [[reveal]]ing one in your hand to activate an effect. Almost all of the monsters require a maintenance cost in the form of sending an Iron Core to the grave or revealing a monster of the same type. There are exceptions, such as that of "[[Koa'ki Meiru Powerhand]]", where you must reveal a [[Normal Trap Card]], or "[[Koa'ki Meiru Valafar]]" where you have to send an "Iron Core of Koa'Ki Meiru" and cannot reveal any {{Main|Master Guide 3 card in your hand instead. Another is "[[Koa'ki Meiru Ice]]", where a [[Continuous Spell Card]] is revealed.  "Koa'ki Meiru" are all [[EARTH]], [[WIND]], [[WATER]] or [[FIRE]] Attribute monsters, rendering them immune to their own control-based effects, which often affect [[LIGHT]] and [[DARK]] monsters. All of the "storylines#File Number 05: Koa'ki Meiru" have the same mark (3 dragons) on some part of their body or on a weapon they have. Also, many "Koa'ki Meiru" and related cards' artwork uses yellow, orange, and red, except for "[[Koa'ki Meiru Ghoulungulate]]".}}

 ==Playing StyleEtymology==The theme was initially designed to bring down the dominating Decks "Koa'ki Meiru" is a combination of over 2 banlists and therefore centered around heavy control elements. Seeing as the meta was ''completely'' dominated by LIGHT words "Core", "Chimera" and DARK Decks"Mail", effects specifically targeted both Attributes therefore bringing about sometimes romanized as "Core Chimair" (a specific combination of the words "MetaCore", and "Anti-MetaChimera" theme). Because of their high [[ATK]], 11 Level 4 monsters from 1900 ATK, topping out at 3000 (==Design==The "Koa'ki Meiru Valafar" archetype consists of a plethora of different creatures, featuring elementals, dragons, statues, warriors and many more and can overall be described as a mishmash of art styles. They don't really have any connection in design or color, except for the fact that all of the "[[Koa'ki Meiru Maximus]]"Meirus" have the same mark (3 dragons), and the nature on some part of the new support, the theme has taken their body or on a more aggressive approach with powerful beatdown elements, namely weapon they use.==Playing style=="[[Koa'ki Meiru Rooklord" is a [[stun]]" and "/[[Koa'ki Meiru Urnightcontrol]]"Deck revolving around fulfilling its monsters' [[maintenance cost]]s in order to keep them on the field and apply their field-controlling effects. Generally speakingSecondarily, there are two ways to use the archetype revolves around interactions with the Normal Spell "[[Iron Core of Koa'ki Meiru]]" cards. The most obvious is simply to use a dedicated Deck; the other way is to use individual the "Koa'Almost every "Koa'ki Meiru" monsters as monster has a supplement to Type specific Decks maintenance cost that must be performed during each of their typethe player's [[End Phase]]s, giving an otherwise they will destroy themselves. "Anti-MetaKoa'ki Meiru" controlling aspect to it as well as being able to maintain it through the alternative monsters typically have a choice of two actions for their maintenance costcosts; for example, using "[[Koa'ki Meiru Drago]]the options are typically sending an "Iron Core" from the player's hand to the Graveyard, or revealing a card in the player's hand (typically a "[[Dragon]]" monster of their same type Deck as seen in "[[Disaster Dragon]]" builds). In order to run a dedicated {| class="wikitable mw-collapsible autocollapse" style="margin-left: auto; margin-right: auto; border: none; text-align: center" |+ {{nowrap|Koa'ki Meiru" Deck, no matter the style, you'll need multiple ways to retrieve the "Iron Core of KoaMonsters & Maintenance Costs}}! rowspan = 2 | Koa'ki Meiru" from your Deck and Graveyard. Good cards for this include "! rowspan = 2 | Level! rowspan = 2 | Attribute! rowspan = 2 | Type! colspan = 2 | Maintenance Cost|-! Option 1! Option 2|-| [[Koa'ki Meiru BoulderMaximus|Maximus]]|| 8 || WIND || Dragon| rowspan = 20 | Send 1 ", Iron Core"| Send 1 "Koa'ki Meiru" monster|-| [[Koa'ki Meiru CrusaderValafar|Valafar]]", and "|| 8 || FIRE || Fiend| —|-| [[Core Transport UnitKoa'ki Meiru Rooklord|Rooklord]]". "|| 7 || EARTH || Warrior| Reveal 1 Warrior monster|-| [[Iron Core Immediate DisposalKoa'ki Meiru Ghoulungulate|Ghoulungulate]]" is also nice mid game after building up resources in your hand. Cards that help thin the deck or dump the "Core" into the Graveyard help make the deck faster and more consistent. You must also be wary of keeping more on field than you can maintain. Your field should max out at 2 "|| 5 || EARTH || Zombie| Reveal 1 Zombie monster|-| [[Koa'ki Meiru Powerhand|Powerhand]] || 4 || EARTH || Machine| Reveal 1 Normal Trap|-| [[Koa'ki Meiru Urnight|Urnight]] || 4 || EARTH || Beast-Warrior| Reveal 1 Beast-Warrior monster|-| [[Koa'ki Meiru's" requiring maintenance with multiple "Cores" in play as well as an alternative cost ready in hand. With this in mind it would be wise to play multiple cards of the same Type, making your field easier to maintain. However, with the release of [[Xyz MonsterBergzak|Bergzak]] || 4 || EARTH || Warrior| Reveal 1 Warrior monster|-| [[Koa'ki Meiru Drago|Drago]]s, you can simply overlay any "|| 4 || WIND || Dragon| Reveal 1 Dragon monster|-| [[Koa'ki Meiru" Monsters that you may not have a maintenance for.Beetle|Beetle]] || 4 || EARTH || Insect| Reveal 1 Insect monster|-Beatdown uses a different lineup, using a minimum of control but only the best in the form of "| [[Koa'ki Meiru Rooklord" and "Koa'ki Meiru Drago". The main attackers are "Crusader|Crusader]] || 4 || EARTH || Beast-Warrior| Reveal 1 Beast-Warrior monster|-| [[Koa'ki Meiru BergzakGravirose|Gravirose]]", "|| 4 || FIRE || Plant| Reveal 1 Plant monster|-| [[Koa'ki Meiru Powerhand" and "Overload|Overload]] || 4 || EARTH || Rock| Reveal 1 Rock monster|-| [[Koa'ki Meiru Rooklord". With the addition of "Guardian|Guardian]] || 4 || EARTH || Rock| Reveal 1 Rock monster|-| [[Koa'ki Meiru Urnight" from ''Sandman|Sandman]] || 4 || EARTH || Rock| Reveal 1 Rock monster|-| [[Absolute Powerforce]]'', you gain a swarm/toolbox element. "Koa'ki Meiru Ghoulungulate" is nice protection but your tribute fodder is best used on "Rooklord". Spell/Trap protection is a better option.Wall|Wall]] || 4 || EARTH || Rock| Reveal 1 Rock monster|-You can also play an "RFG | [[Koa'ki Meiru" Deck. "Ghoulungulate" can protect your monsters while setting you up for "Ice|Ice]] || 4 || WATER || Aqua| Reveal 1 Continuous Spell|-| [[Return from the Different DimensionKoa'ki Meiru Sea Panther|Sea Panther]]". Self|| 4 || WATER || Sea Serpent| Reveal 1 WATER monster|-Milling elements are recommended to load your grave. The set up takes time so you can use "| [[Royal OppressionKoa'ki Meiru War Arms|War Arms]]" as you aren't in a rush. "|| 4 || EARTH || Warrior| Reveal 1 Warrior monster|-| [[Cyber ValleyKoa'ki Meiru Doom|Doom]]" is also a great asset to the Deck.|| 3 || WIND || Fiend| Reveal 1 Fiend monster==Weaknesses==|-| [[Koa'ki Meiru Speeder|Speeder]] || 3 || WIND || Machine| Reveal 1 Machine monster|}Because A small number of "Iron Core of Koa'ki Meiru" may often be in the Graveyard it is vulnerable to cards that can banish it such as monsters do not have maintenance costs.{| class="[[Gladiator Beast Retiari]]wikitable mw-collapsible autocollapse" and style="[[Macro Cosmos]]". Also, having multiple margin-left: auto; margin-right: auto; border: none; text-align: center"|+ {{nowrap|Koa'ki Meiru" monsters on the field at once can be extremely dangerous as each one would require you to reveal a card or discard a card from your hand at the End Phase, leaving your hand and field advantage very hard to maintain unless multiple copies are used (for example, 3 "KoaMonsters w/o Maintenance Costs}}! Koa'ki Meiru! Level! Attribute! Type|-| [[Koa'ki Meiru Powerhands" only require 1 Normal Trap Card revealed). A good way to avoid problems with this is to keep a duplicate of the specific monsters in your handPrototype|Prototype]] || 4 || EARTH || Rock|-usually, "| [[Koa'ki Meiru" Monsters require you to reveal a monster of the same type so you can reveal a duplicate or another "Tornado|Tornado]] || 4 || WIND || Winged Beast|-| [[Koa'ki Meiru" of the same type. "Supplier|Supplier]] || 4 || EARTH || Rock|-| [[Koa'ki Meiru" monsters are very reliant on the hand and so cards like "[[Card DestructionBoulder|Boulder]]", "|| 4 || EARTH || Rock|-| [[Mind CrushKoa'ki Meiru Hydro Barrier|Hydro Barrier]]"|| 3 || WATER || Aqua|}In gameplay, or "[[D.D. Designator]]Koa'ki Meiru" can completely disrupt the playermonsters have a variety of effects, ranging from consistency support, battle, destruction, or negation focused effects. A number of "Koa's strategy and cards like ki Meiru" monsters (e.g. "[[Trap DustshootKoa'ki Meiru Drago|Drago]]" or even and "[[Des Koala]]" can deal serious damage. One way to beat the "Koa'ki Meiru" format is to Doom|Doom]]") have the opponent permanently reveal their hand to you effects focused on their turns in order to make them either discard an "Iron Core of Koa'ki Meirucountering [[LIGHT]] and [[DARK]] monsters (which were likely intended as " or destroy the card since they cannot anti-meta"reveal" the card to youoptions against their contemporary LIGHT and DARK-based meta Decks). Such cards include Four Level 4 EARTH Rock "Koa'ki Meiru" monsters ("[[Respect PlayKoa'ki Meiru Overload|Overload]]" and , "[[Ceremonial BellKoa'ki Meiru Guardian|Guardian]]". , "[[BanishKoa'ki Meiru Sandman|Sandman]]" Decks can banish , "Iron Core of [[Koa'ki MeiruWall|Wall]]" and so you have to rely on your revealing ) also form a thematic sub-series with a single effect. To protect yourself from this, it is a good idea to have "pattern: each of them can [[Necrovalleynegate]]" and an opponent's action (summoning a monster or activating a "[[Burial from card/effect of a Different Dimension]]card type) by tributing themselves." in your [[Side Koa'ki Meiru" cards can be played as staples in other Typing-focused Decks, or played as a single dedicated Deck]].  As a dedicated "Hand ControlKoa'ki Meiru" Decks present the biggest threat by being able to specifically remove assets essential to the Deck. ==Playing Tips==This Deck revolves around "Anti-Meta". Obviously, the most important card in Deck primarily focuses on the Deck is Level 4 EARTH Rock "Iron Core of Koa'ki Meiru"monsters due to their accessibility, so having three in your Deck is a must. Most of the monsters are used against [[Effect Monsterspower, and synergy with [[Rock]], mostly DARK and LIGHT monsters, since support; they are form a part of the commonly used Decks (popular "[[InfernitiesRock Stun]]", "Deck.The Deck's main searchers are "[[LightswornsDiamond Core of Koa'ki Meiru]]", "[[BlackwingsKoa'ki Meiru Urnight]]" etc.). Most , and "[[Koa'ki Meiru Decks should focus on Supplier]]". Aside from the negation effects of "[[Koa'ki Meiru Wall]]Rock Stun", "[[Koa'ki Meiru Sandman]]"monsters, other relevant high-power (and low-cost) "[[Koa'ki Meiru Guardian]]" and monsters include the card advantage LIGHT and swarming effects of DARK hard counters "[[Koa'ki Meiru CrusaderDrago]]" and "[[Koa'ki Meiru UrnightDoom]]" using , the other card-destroying "[[Koa'ki MeiruIce]]" Monsters according to the Deckand "[[Koa's main strategy. In addition, "Koa'ki ki Meiru IceTornado]]" , and the mass effect negation of "[[Koa'ki Meiru TornadoHydro Barrier]]" are wonderful in punishing your opponent's powerful Special Summoned Monsters. While "Iron Core of Koa'ki MeirusMeiru" can also work well with support is central to the archetype's playstyle, and there are multiple dedicated searchers for it (e.g. "[[Equip Spell Card]]s. Using cards like "[[Hidden ArmoryCore Transport Unit]]"), "[[Iron Core Armor]]" can be recycled just as much as the "Iron Core" fact that the card doesn't have any effects itself. "[[Core Blaster]]" is also extremely powerful, and even a single copy could destroy decks that focus heavily on LIGHT and DARK monsters. and is purely an enabler for certain specific cards means that more modern "Koa'ki Meiru Bergzak" works very well with any ATK-boosting effectwill typically try to downplay its importance, in favor of other external enablers (and maintenance cost providers) like "[[Iron Blacksmith KotetsuAdamancipator]]" fits on the deck since it's a [[Beast-Warrior]]. "[[Trade-In]]" can work well if you are using "[[Beast King Barbaros]]" or "[[Grandsoil the Elemental Lord]]" to reveal for "Koa'ki Meiru Urnight" and "Koa'ki Meiru Crusader". Other Level 8 monsters to work with "Trade-In" are "Koa'ki Meiru Valafar" and "Koa'ki Meiru Maximus". It would be wise to include cards that return monsters and other cards to your or your opponent's hand. For example, "[[Compulsory Evacuation Device]]" or "[[Penguin Soldier]]" can both remove threats from the field or keep a "Koa'ki Meiru" alive for a turn or even using it for the maintenance.  Usual "Anti-Meta" tricks like "[[Grave of the Super Ancient Organism]]" or "[[Royal Oppression]]" work fairly well, since "Koa'ki Meirus" can maintain a solid game even without Special Summoning.  Although most "Koa'ki Meiru" monsters have difficulty staying on the field, a few of them work incredibly well together, sharing types or common reveals that help ensure their survival on the field. However, because most are level 4, they can be used for an [[Xyz Summon]] before they are destroyed during the End Phase. * "[[Koa'ki Meiru Urnight]]" and "[[Koa'ki Meiru Crusader]]" are [[Beast-Warrior]]-Type monsters and have the same reveal requirement, while allowing for a good presence on the field and card advantage. "Urnight" can Special Summon another level 4 "Koa'ki" from the Deck for a quick Xyz Summon and "Crusader" can recover "Urnight" after it has been detached.  * "Koa'ki Meiru Wall", "Koa'ki Meiru Sandman", "Koa'ki Meiru Guardian", "Koa'ki Meiru Boulder", "[[Koa'ki Meiru Prototype]]" and "[[Gigantes]]" can be extremely aggressive when combined, as well as controlling the field and hand. "Wall", "Sandman", and "Guardian" all have effect negation abilities: they are used for a "Rock Stun" deck. "Boulder" and "Prototype" are both extremely useful for "Koa'ki Meiru" monsters because they do not require the normal sacrifice-"Boulder" is used to search for other "Koa'ki Meiru" monsters or "Iron Cores", while "Prototype" can sacrifice itself to prevent a "Koa'ki Meiru" monster from being destroyed during the end phase of the turn. * "Koa'ki Meiru Maximus" can be used as the reveal cost for "Koa'ki Meiru Drago". "Drago's" effect serves as disruption, while you gather "Iron Core of Koa'ki Meiru" for "Maximus's" final push for game. "Maximus" is often a dead draw early on, however; and it is difficult to maintain once it hits the field, making it a very powerful but also very temperamental boss monster. Use with caution. * "[[Koa'ki Meiru Doom]]" and "Koa'ki Meiru Valafar" also work together, usually in a different Deck revolving around "[[Evil Hero Dark Gaia]]" and "[[Dark Fusion]]". * "[[Koa'ki Meiru Speeder]]" can null the costs for "Koa'ki Meiru Tornado" and "[[Koa'ki Meiru Hydro Barrier]]", as well as working with "Koa'ki Meiru Powerhand" due to their high ATK and DEF and low Levels. * "Koa'ki Meiru Ghoulungulate" has a protection effect which can be easily achieved by building up a good Graveyard size with "Iron Core Specimen Lab" and "Koa'ki Meiru Urnight". "Koa'ki Meiru Ghoulungulate" can easily be brought out with [[Pyramid Turtle]]'s" effect, and keeps a good Tribute fodder for "Koa'ki Meiru Rooklord". Since both Banish, "Burial from a Different Dimension" and "Return from the Different Dimension" can be very useful. Finally, a few cards have the heavy cost of discarding a [[Spell Card]] from your hand (like "[[Summoner Monk]]", "[[Cursed Seal of the Forbidden Spell]]" and "[[Chiron the Mage]]"), but "Koa'ki Meiru" Decks can recycle the "Iron Core of Koa'ki Meiru" as long as they want to, making these much more consistent than any other Deck. ==Recommended Cards== ''See also: [[Rock Stun]]monsters.'' ===Koa'ki Meiru "Anti-Meta" BeatdownRecommended cards==={{Decklist|Deck

* [[Koa'ki Meiru SandmanGigantes]]* [[Koa'ki Meiru Beetle]] (Optional)|xyz monsters =* [[Koa'ki Meiru BoulderBrotherhood of the Fire Fist - Tiger King]]* [[Koa'ki Meiru Tornado]]|link monsters =* [[Koa'ki Meiru Hydro BarrierFire Fighting Daruma Doll]]* [[Morphing JarIsolde, Two Tales of the Noble Knights]]* [[Summoner MonkMissus Radiant]]|normal spells=

* [[Core Transport UnitCompression]]* [[Core OverclockReinforcement of the Army]]|continuous spells = * [[Pot of DualityFire Formation - Tenki]]* [[Koa'ki Meiru Initialize!Fire Formation - Tensu]]|normal traps =* [[Core BlastReckoned Power]]|counter traps =

|continuous traps =* [[Reckoned PowerAnti-Spell Fragrance]]

 {{Decklist|Gogogo Koa'ki Meiru(2013)<br />ゴゴゴコアキメイル

===Weaknesses===* The Deck's reliance on "Iron Core of Koa'ki Meiru", which has no notable effects itself, means that a "Koa'ki Meiru" Deck that focuses on "Iron Core" can run into issues with dead draws.* A major weakness is the archetypes own maintenance effect. If the player is not careful and summons multiple "Koa'ki Meiru" monsters to the field without thought, it can easily blow up if one is not able to pay all the costs.** Additionally, cards such as "[[Respect Play]]" or "[[Ceremonial Bell]]" can eliminate the majority of the alternative maintenance costs by making it impossible to reveal any cards. In that case, one would be forced to rely on sending "Iron Core" to satisfy maintenance costs.* "Koa'ki Meiru" monsters are very reliant on the hand, therefore any form of "Hand Control" presents a big threat by being able to specifically remove assets essential to the Deck. Cards like "[[Card Destruction]]", "[[Mind Crush]]", "[[D.D. Designator]]" and "[[Trap Dustshoot]]" can completely disrupt the player's strategy.* Like many other decks, "Koa'ki Meiru" does not appreciate its Summons to be negated or blocked. "[[Solemn Warning]]", "[[Solemn Judgment]]", "[[Archlord Kristya]]", "[[Vanity's Fiend]]" or "[[Vanity's Emptiness]]" are all effective against the deck.{{Archseries navbox}}{{Archetype Archseries navbox(Duel Links)}}[[Category:TCG and OCG archetypes]]