Diamond Core of Koa'ki Meiru | Decks and Tips

This page notes details of Diamond Core of Koa'ki Meiru (Spell Card/Normal) : decks, tips, effect and rulings. Learn and enjoy playing Yu-Gi-Oh! Duel Links!
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update 20/12/2019

Diamond Core of Koa'ki Meiru

Diamond Core of Koa'ki Meiru
TypeSpell Card
Card Effect TypeCard effect / Ignition-like Effect
ArchetypesKoa'ki Meiru
Supports ArchetypesKoa'ki Meiru


Add 1 "Koa'ki Meiru" card from your Deck to your hand, except "Diamond Core of Koa'ki Meiru". You can banish this card from your Graveyard; for the rest of this turn, "Koa'ki Meiru" monsters you control cannot be destroyed.

How to Get

PackRevolution Beginning [SR]
Level-up reward--
Victory against--
Card trader--




  • Can search any Koa’ki Meiru card.
  • Can protect your Koa’ki Meiru monsters from destruction for one turn.


  • Protection effect can only be activated during your Main Phase and ends during your End Phase.


  • You can use this card to prevent all your Koa’ki Meiru monster from destroying themselves for 1 turn.

Koa’ki Meiru Crusader

When Koa’ki Meiru Crusader destroys a monster by battle he can retrieve a Koa’ki Meiru card from your graveyard. Use this to retrieve Diamond Core of Koa’ki Meiru for more searches.

Iron Core of Koa’ki Meiru

Iron Core of Koa’ki Meiru is the key card of many Koa’ki Meiru decks so search it out with Diamond Core of Koa’ki Meiru. And with Iron Core of Koa’ki Meiru in your hand you will have access to support like Iron Core Luster and Iron Core Specimen Lab.

Decks [Updated]

Koa'ki Meiru Deck [Updated]



ActionsAdds from Deck to hand
Banished categoriesBanishes itself from Graveyard for cost
Monster/Spell/Trap categoriesCannot be destroyed by card effects
Attack categoriesCannot be destroyed by battle


Hot New Top
This card should be semi-limited because there a few cards counter this, as Koa'ki dominates the META.
Koaki will die if this card is banned
<< Anonymous
Anonymous Reply
Im telling you, if they ban this card then it will be around july lol, so I guess it's the best investment in the game right now
<< Anonymous
Anonymous Reply
More likely they will limit maximus. Koa'ki meirus are not op without him.
<< Anonymous
Anonymous Reply
they will only limit maximus to 2 to prevent trunade combos
As someone who played and had fun with a Koa'ki Meiru deck months ago when it was barely on the tier list, this card is validating as 🔥.
<< Anonymous
Anonymous Reply
yep, I know what u mean... its previous version was already pretty strong with the right hand. Now it's the real mvp.
<< Anonymous
Anonymous Reply
Not validating, broken.
What a mistake this was...ruined the meta yet again
<< Anonymous
Anonymous Reply
You can't ruin something that, by its very definition, is broken. Anything that can shake things up even for a little while is always welcome, unless you're satisfied dueling against the same 3 or 4 decks in PvP that is.
<< Anonymous
Anonymous Reply
At least dueling the same 3 or 4 decks is more interesting than dueling the same 1 damn deck that reminds me of sylvan and fur meta.
This deck made me add Sphere K into my duelling deck.

Floodgate becomes even more important too.
Does it protect against battle destruction too? Can you 🔥 against a monster with the same attack?
<< Anonymous
Anonymous Reply
Why yes you can. ;)
<< Anonymous
Anonymous Reply
Just to be sure, does this effect prevent your monster from being destroyed by their own effects?
<< Anonymous
Anonymous Reply
Yes, it does
<< Anonymous
Anonymous Reply
That's the point, it acts as an additional safety net for your Koa'ki Meiru monsters.
Releasing this card is Konami's answer to those people who think some old meta decks should get nerfed
Crusader can bring this card back from the grave.
new CA lady and gents
Koa'ki Meiru tier 1!!!!!!!!!!!!!!!!!
OMG GOD koaki mieru OTK deck is upgraded this will gonna be meta and GOD will spam room1 chat
One of the best searcher in the game. Can search either monster, spell or trap. Not restricted to once per turn. Also giving protection.

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Comments (updated every hour)

That was an stupid deus ex machina, atem didn't even duel, he literally summon a new black m...
op (myself) is right
lol almost 80% of skills interact with cards
then don't buy it lol problem solved
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