Design-wise, Fiend monsters usually appears either as classical demonic beings with menacing or otherworldly designs such as "Summoned Skull" or "Dark World" monsters, or strange creatures that would not fall under the Beast or Beast-Warrior types, such as "Sangan" or "Kuriboh"
Outside of those top three decks that run artifacts, there are always some nonsense strategies that people like yours truly love to craft, centered around cards that cant defeat a Stony Silence
Bias towards lands with the Forest subtype for your Utopia Sprawl and Three Visits
Then confirm with the artwork frame
This is vital in a meta where aggressive strategies are prevalent, as it allows players to sustain their defenses and outlast their opponents
The new Darkness-type deck, in particular, has quickly gained attention for its quick damage output and versatility