I think the comparisons to Expressive Iteration are a bit of a reach, since Flow State requires two different card types in your graveyard, but if youre in a Constructed or Commander deck that can bin an instant and a sorcery easily, this is some powerful card draw
Whilst the Black White Rares are exclusive to Black Bolt and White Flare, it's setting the trend for the next era of Mega Evolutions and it's first expansion, Phantasmal Flames
The game is always getting updates with new cards, but there are some key deck combinations which are at the top of the Master Duel meta right now
This was probably done because Duel Monsters was released before the first OCG set, Vol.1 , though it is not known why so few of the cards in the game have passwords, especially since the game credited at least nine individuals, but only six of them had passwords, and since the game includes 15 secret monsters, but only nine of them can be unlocked with a password
Some Toon monsters depend on Toon World so much that they're destroyed along with it, though nothing happens to them if Toon World leaves the field otherwise
4 Total So, all in all, 29 of your deckslots are focused on nothing except your main win condition