Granted these arent cards, but perhaps it indicates they are being given a bit more freedom
While its slightly less explosive than Azusa, Dryad is not legendary, survives Lightning Bolt, and enables Valakut, the Molten Pinnacle without Scapeshift
The most expensive tournament deck of all time was played by Magic personality Stephen Menendian at a unique throwback event using 1993 rules using Mox Sapphires to cast literally millions of dollars in other Power Nine cards
[Note 1] [Note 2] The player's Deck Master typically starts the Duel visible (with the exception of Leichter's "Jinzo", whose identity was disguised, and Noah's "Shinato's Ark", which only manifested when Noah revealed its first Deck Master ability), but they have no practical function for a Duel while in this state, other than their Deck Master ability
Broadly effective spell and trap cards marry up with some solid starting monsters for a good foundation that doesn't focus on obtuse combinations of cards