You could say that this is Nyandestar's third Duel since the previous one she had was against Yuamu corrupted by Darkness (coincidence, I don't think so). So, it would be her second victory in total. The funny thing is that I'm still waiting for a Galaxy-Eyes Photon Cat, which seems like the obvious choice to appear at some point (either in the Anime or as additional support for Cat Deck) In any case, everything seems to indicate that Nyandestar's Planet will continue to be important for the next Episode and would be related to what Epoch mentioned that Zwijo was on this Planet for some reason. I'll throw out a random idea, but I think The Darkmen are looking for The Relic, the item that can help revive Velgearians. At the same time, it would give more weight to the theory that Yuamu is the one who commands The Darkmen (and why they decided to go for Nyandestar: she already had contact with The Relic and Kuaidul in the past)

Star Cat Ace Nyanbuster looks like a reference to Diebuster

Something curious to note in The Darkmen is that each one seems to have a different approach to how they like to see people suffer or hurt. - Sabyuas likes to see other people suffering or in pain. - Bruyea likes to play emotionally with people, causing emotional/psychological damage. And well, each Darkmen also has their own way of speaking: Sabyuas says his sentences with "Sa" and Bruyea says "Mama" in his sentences. And well, now it is known that the leader of The Darkmen is female, but I don't think she is the supreme ruler of the Dark Matter Empire that is constantly mentioned: she is just the general leader of the Darkmen. Either way, if it ends up being true that Yuamu is affiliated with or the leader of this group, I guess that means she would use a variant of Dark Matter Deck.

I was thinking during the episode ‘it’s wild that they included a guy with a mommy fetish’ and then when he was talking about his mommy collection I was thinking ‘Oh…he really does have a mommy fetish’

Is the leader of the dark matter Empire a corrupted yumau or could she be the female member of the Empire Zeiet using an alias.