Iron Core of Koa'ki Meiru | Decks and Ruling

This page notes details of Iron 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 06/08/2020

Iron Core of Koa'ki Meiru

Iron Core of Koaki Meiru
TypeSpell Card
Card Effect TypeTrigger-like Effect
ArchetypesKoa'ki Meiru
Supports ArchetypesKoa'ki Meiru


During your Draw Phase, if this card is in your Graveyard, you can add this card to your hand instead of drawing, and/or send 1 "Koa'ki Meiru" monster from your hand to your Graveyard to add this card to your hand.

How to Get

PackGaia Genesis [N]
Level-up reward--
Victory against--
Card trader--




  • Main cost for effects in your Koa'ki Meiru deck.
  • Can be discarded to sustain Koa'ki Meiru monsters.
  • Can recover itself from the graveyard.


  • Does nothing on it's own.
  • Job of sustaining Koa'ki Meiru monsters is more effectively done by revealing cards in your hand.



Use these cards to search out Iron Core of Koa'ki Meiru from your deck.

Iron Core Support

Many powerful Iron Core support cards require you to have Iron Core of Koa'ki Meiru in your hand or to use as cost. Here are some of them.




ActionsReturns itself from Graveyard to hand / Sends from hand to Graveyard for cost / Replaces normal draw


Russian 15days ago
So why does necrovalley not work on this card, a legendary knights player deck outed me with this card, he should not be able to get the iron core back to his hand...
<< Anonymous(Russian)
Anonymous 14days ago Reply
Cards that move themselves back to the hand or deck are not negated.
<< Anonymous
Anonymous 14days ago Reply
Yes they are. If Necrovalley truely doesn't negate Iron Core's effect, it's a bug. (Wouldn't be the first time something slipped through like that. Paleozoics come to mind.)
i'm glad they un-limited this and semi-limited diamond core instead, it wasnt fair to the archtype since 3 iron core isnt OP and the iron core is needed for most KM cards
Why is Iron Core semi-limited? And why is Maximus limited? It ruins the point of the deck!
<< Anonymous
Anonymous Reply
Maximus was never meant to be the "point of the deck" anyway. Koa'ki Meiru were always designed with control in mind, with a focus on anti-LIGHT/DARK.

And I don't know about you, but I'm not an especially big fan of being OTK'd, and Maximus, especially in multiples and with access to Hey, Trunade!, very often did so.
iron core armor can replace third copy
Why does it seem like the SR cards are harder to get than the UR. Could only pull one, this is why people hate main boxes.
Tricky card
This card is pretty weird, really helpful and it can make you brick at the same time.
Core Chimera
why not UR?
<< Anonymous
Anonymous Reply
Because, unlike with U.A., they actually want people to play the deck.
Too bad it can't maintain Heat Wave because you still enter the Draw Phase.

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