[@King Cosmos] Oof, those decks.

Alright, I think I may need to stress this again, but:

We're in a scripted environment. It's generally discouraged to go for the best cards, because they create the worst scenarios.

Generally, if a card is really good, it tends to create an unfair situation for the opponent where they have to spend a lot of time and effort getting rid of your things. This isn't bad in the case of a boss monster, but it becomes a problem when there's things in the S/T lineup that shut them down. Generally, when having full control, you [i]don't[/i] want to interrupt your opponent. Cutting someone's turn off halfway can be good in a one-off scenario, but putting your focus on negation and removal makes your opponent have to spam harder which...

there's a reason Vrains duels suck.

I'd reccommened straying away from cards such as the solemn brigade, Twin Twisters, Mirror Force, Soul charge and general staples, really. Stuff like Upstart Goblin is also redundant, the only thing you accomplish is having a way for your opponent to gain 1000 LP. Magic Poker Formula is in full effect, so having a card that only draws you 1 and nothing else doesn't do much for you, as you could've just had the drawn card in hand to begin with.

Cards I like are stuff like your Draw Muscle, Strike of the Monarchs etc. because they're a lot more situational. They lead to more interesting gamestates without overly punishing your opponent for no real reason other than "I can".

Also, a last thing: If you're going to make example lists, try not to say stuff like 'Rank 4 Xyz' yeah? It implies you'd be summoning Utopia alongside Castel and Diamond Dire Wolf, three monsters that don't really relate each other in any way. Besides, Numbers are kind of Naoki's schtick and extra decks should be limited rather than broadened. Having everyone use everything makes decks feel less unique.

EDIT: Sat is working on the review of your characters, by the by