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"
(3) No purchase can be claimed or removed until it has been paid for
In Commander, its incredibly powerful in the command zone or the 99
Ripples of Potential introduced an option for blue decks that use counters, but blue still lacked a more universal option
For Limited, we have Draft (only in BO1 matches) and Sealed, which use the Ranked system
The result of this is a unique community: a strong niche within a region dominated by imported card game giants like Magic: The Gathering and Pokmon, alongside a mix of domestic TCGs and more niche franchises like Cardfight Vanguard