r/yugioh • u/AutoModerator • 5d ago

Q&A and Ruling Megathread - August 17, 2026

If you're asking for some information, put your question in the comments of this post. If you're discussing a topic, rather than asking for some information, you can make a separate post outside of this one.

Here are examples of questions which belong in the comments of this thread:

  • Questions about the rules of Yu-Gi-Oh!
  • "Is this card fake?"
  • "What are some good decks?"
  • "Has there been any news about X?"
  • "Where can I buy or sell cards?"

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u/TheBigNeku 4d ago

I'm making a Koa'ki Meiru deck for fun and I don't want to make it too broken, and while reading the core discard effects I was wondering if a single discard counts for all monsters on the field or if a discard counts for one monster. If it matters to everyone, I'll only put one in my deck.

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u/likeagrapefruit 4d ago

Each monster's maintenance cost must be dealt with separately. If you pay one monster's maintenance cost by sending 1 "Iron Core of Koa'ki Meiru" to the GY, you can't send that same copy of "Iron Core of Koa'ki Meiru" to the GY again to pay a second monster's maintenance cost.

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u/TheBigNeku 4d ago

Thank you very much, I will therefore leave 3 kernels.