Beetle
War Arms
Ghoulungulate
Gravirose
MAXIMUS
Core Transport Unit
Koa'ki Meiru Prototype
Core Overclock
Now, let it be said that Koakis were thought to be finished after YGO "series 6", But with Starstrike Blast having a single Koaki card in it(Koaki Ring), there is hope that we may still get 1 more exclusive. But out of what Konami has made, only a few of them are useful in a pure Koaki deck. So everyone(me) wants them to make just ONE more card that can tie the theme together. Here are a few things that can work:
-A card that relieves koakis of EP costs altogether.
-A card that special summons itself with a useful "pure core" effect.
-A card that relieves the cost of using the core (or replaces the core).
-A card that allows you to search the deck for koakis more quickly than Lab and boulder. (A ROTA style effect)
-A card that can negate spells.
Out of these, I believe that special summoning, searching, and an effect that can tie the cards all together. Relieving us of end phase costs or reveal costs would be nice an all, but It would also be nice to have a card with it's own ability, rather than a card that only enables use of OTHER cards.
For example, a new continuous spell card "Iron Core MK. II" with the effect: While this card is in your hand, its name is treated as "Iron Core of Koa'ki Meiru". While this card is face up on the field, card effects that require an "Iron Core of Koa'ki Meiru" for activation no longer require it(all other costs must be met). In theory, this is an awesome card. With it, you can spam Luster, Negaton, or Core Blast. But the problem is, cards that dont do anything else can become just as dead as the core itself. Sure it ENABLES use of cards, but until that happens, it will be dead.
So I would much rather have a new monster(I feel the koa'ki monster lineup is lacking) that has its own empowering effect. Crusader and Urnight are great because they are instant field presence, so long as you can get over the opponent's monsters. Sandman and Guardian do similar, but not as well. So a monster that searches the turn it is played, or a monster than creates such a presence rivaling crusader and urnight. This is one of the funny effects i came up with:
Koa'ki Meiru Engineer, psychic, earth, level 1, 1000/1000. You can Reveal an iron core to SS it from your hand, or maybe if you control a Koaki you can SS it from the hand. While you control a Koaki it can not be selected as an attack target. Then it gains effects based on the type of monster on the field. Beastwarrior= When you Destroy a monster by battle you can SS a Koaki from the grave? Rock= You can remove 1 Koaki from the grave to negate a spell card activation and destroy it? Warrior= When a Koaki attacks a level 4 or higher monster, place it at the bottom of the deck without applying damage calc(or maybe just make them Ehrens)? Any other= Light and Dark monsters can not be summoned(idk, maybe just stop at the warrior effect).

In other news, mah girl is back in bl....ue! And this time she's paired up with Demise! I'm trying to stray away from the generic Northy lock build, that involves 5 cards to win the game (Decree, 1 Spellcaster on the field, Village, Northy and Ritual of Grace). Now, I'm trying the old school JP version of the deck, where Northy and Demise both share the stage. And though Northy really has no targets besides Demise himself, the deck has many many cards to generate field presence far greater than your opponent's, and force them to topdeck very early. The deck I used to use with Demise was all about the OTK. You win with cards like Geartown, Megamorph, and Limiter Removal. With this new build, you play a war of attrition(similar to playing Yubel). Destroying your opponent's resources with back to back Black Roses and Demise. All until you win because you have bosses and they dont. I is still a little incosistent because of the triple preps used to recycle ARA, but the addition of pot of avarice in the deck is simply amazing.