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.
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.
We have Electromagnets.
We have Six Samurais.
We have Blue-eyes
We have Red-eyes
We have Neos Fusion
We have Koa'ki Meiru
We have Survival's End
We have TRIAMIDS (F2P and can climb in DAY 1)
We have Dark Magician
We have Mermails
We have Subterrors
We have Ancient Gears
We have Crystrons
We have Cyber Dragon Beatdown + King of the Swamp
We have Gem Knights
Koa'ki Meiru are actually stronger now thanks to 3 Iron Cores.
Btw, they are going to limit diamond because Koa'ki Meiru ALREADY topped competitions such as the KC CUP and the WCS. It's an archetype that already had its time to shine, it's been meta for more than 5 months.
Bcus the box is old enough to have served its purpose, and with Neos-Koaki dominating the championship season they had to hit the deck someway- and since they won’t hit Neos Fusion they had to hit Diamond Core
Yes! This should replace Iron Core in the limited list!