- This card can be searched by "Terraforming", "An Owl of Luck", "Demise of the Land", "Ancient Fairy Dragon", "Madolche Butlerusk", "Planet Pathfinder", "Pop-Up", "Metaverse", "Set Rotation", "Ghostrick Renovation", "Favorite Hero" and "Koa'ki Meiru Supplier".
- You can choose the order in which maintenance costs are resolved. Therefore, if you don't have "Iron Core of Koa'ki Meiru" in your hand, resolve the maintenance costs of the "Koa'ki Meiru" monsters first in order to reduce the loss of hand advantage.
- If two "Koa'ki Meiru" monsters would be destroyed, including at least one Rock "Koa'ki Meiru" monster, resolve the non-Rock "Koa'ki Meiru" monster's destruction first by searching "Koa'ki Meiru Supplier", which Special Summons itself when the Rock "Koa'ki Meiru" is destroyed, and searches "Iron Core of Koa'ki Meiru" so that this card stays on the field.
- Use this card with "Koa'ki Meiru Prototype" to generate Card Advantage whenever a "Koa'ki Meiru" is destroyed at the End Phase.