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I believe Koa'ki Meiru have the greatest potential to be tournament winning, but they have a major weakness, the Iron Core of Koa'ki Meiru. So I was thinking of a Deck doesn't use cores, increasing speed and swarm ability.

(It's most likely Beast-Warrior, Rock, with Zombie Support Deck)

Monsters: (So far) (KM Sandman when it comes out)
Level 1-4
3x KM Guardian
2x KM Crusader
3x KM Urknight
2x KM Powerhand
1x Necroface
2x Pyramid Turtle
2x King Tiger Wanghu

Level 5 and 6
2x KM Ghoulungulate
1x Vampire Lord

Traps: (So far)
1x Call of the Haunted
2x Scrap-Iron Scarecrow
2x DNA Transplant
1x Mirror Force
1x Solemn Judgement

Spells: (So far)
3x Iron Core Armor
2x Core Blaster
3x Burden of the Mighty
2x Smashing Ground

34 Cards

I think I really need more spells.
Ideas welcomed.

Maybe try this?

Koa'ki Meiru Ghoulungulate x3
Koa'Ki Meiru Urknight x3
Koa'ki Meiru Guardian x3
Koa'ki Meiru Crusader x3
Shutendoji x2
Pyramid Turtle x3
Goblin Zombie x2
Mezuki x1
PlaugeSpreader Zombie x1

Core Transport Unit x3
Core Compression x3
Iron Core of Koa'ki Meiru x3
Iron Core Specimen Lab x2
Burial From The DD x1
Brain Control x1
Heavy Storm x1

Bottomless Trap Hole x2
Mirror Force x1
TT x1
Call Of The Haunted x1

Seriously though you'll never find that picture perfect build.

How in a thread about them do you misspell their name that much?

That monster is a horrible idea. Just run the damn secret.

i also run a koa'ki deck but its still in the works though i did win a few duels at school with this deck but it does require iron cores...because my deck focuses on revealing and the iron cores are my safety net as well as the "key" to most of my deck

so if you want to try it here is my current prototype...

monsters: (20)

Koa'ki Meiru Boulder X2
Koa'ki Meiru Guardian
Koa'ki Meiru Urnight X3
Koa'ki Meiru Maximus
Koa'ki Meiru Drago X3
Koa'ki Meiru Powerhand X3
Koa'ki Meiru Crusader X3
Luster Dragon X2
Gladiator Beast Andal X2

Spells: (15)

Iron Core of the Koa'ki Meiru X3
Iron Core Armor X2
Iron Core Immediate Disposal X2
Urgent Synthesis X2
Core Compression
Swords Of Revealing Light
Core Blaster

Traps: (9)

Iron Core Luster X2
Automatic Laser X2
Trap Stun
Call of the Haunted
Core Blast
Dark Bribe
Sakurestu Armor

Deck total: 44 cards

yeah my deck is mostly focused on Dragons and Beast Warriors with a bit of rock to give it some extra draw power.


But my advice for your deck you are working on now is to keep Koa'kis to a two archtype deck so that it can focus more on revealing cards in your hand making it easy to keep them on the field, and since you have Urnight i highly recommend you run iron cores because it can't swarm if you do not have an iron core in your deck.

*reads other posts* huh...son of a gun i am the first lol. well maybe its because i actually have faith in the Koa'ki meirus and their unique playing style that i actually know a lot about them lol anyway no matter what deck you build, powerhand is always welcopmed as a beat stick if nothing just be sure to keep normal traps in your hand like mirror force or bottomless lol cuz i read an interesting trick with powerhand online.
but the only problem is it requires 2 iron cores in your hand, or atleast one iron core and one spell or trap card you don't mind losing

Step 1: summon powerhand

Step 2: reveal good trap card

Step 3: mix up your hand a bit

Step 4: set your "bait" card

Step 5: Discard iron core to keep powerhand on the field instead of revealing your good trap card.

how does this help? well it makes your opponent think twice before attacking or it makes them waste a heavy storm or mst or etc. to get rid of it lol

first to mention it to him though or atleast to remind him