There are "best matches" when the elements match. For example, the first review of the Swordriver shows that if you use Lion Senki and Peter Fantasista (which are both water based WRBs), you actually get a special announcement that's specifically for them.

So basically, at least Saber, Blades, and Espada have "best matches"

Saber/Fire: Brave Dragon, Storm Eagle, and Saiyuu Journey.

Blades/Water: Tenkuu no Pegasus, Lion Senki, and Peter Fantasista.

Espada/Thunder: Tri Cerberus, Needle Hedgehog, and Lamp Do Alngina.

Also, another thing is that matching element WRBs actually share the same instrumentals with different words over them.

In the same review mentioned earlier, if you listen to Lion Senki and Peter Fantasista's standalone announcements, they do have the EXACT same instrumental behind them.

In other words, this show is what happens when Toei fuses Blade, OOO, Wizard, Ghost, and Build via Unite Vent card. :lolol

Don’t forget Kenzan. There’s the Sarutobi Sasuke story and possibly the Jack and the Beanstalk. So they’re a good Best Match. Just need an animal to fit.

No. They’re both stories. They’d each need an animal and a mythical creature and would be two separate Best Matches.

It would actually need both a regular animal and a mythical one since Im assuming a match doesn't include two story WRBs.

Yeah you're right. What would fit Sasuke's story?

the Sixth Rider is "Kamen Rider Buster."

he wields' the mighty Dogouken Gekidou.

real name "Ryo Onoue," he is a described as a patient man raising his son Sora to fight with the next generation of swordsmen. Buster was once Calibers' best friend and returns to find out the secret of his betrayal.

https://twitter.com/eiga_natalie/sta...30240906133504

Something something Inoue joke.

So, he's a father and he was best friends with Caliber.

I feel like he's gonna die and his son will take up the mantle of Buster later in the series.

I can't put my finger on it, but Buster's design reminds me of Ultraman Geed...