3. **What are some of the most powerful or iconic cards in Cardfight!! Vanguard history, and what makes them stand out in terms of abilities or impact on the game?
2. **How does the Grade system in Cardfight!! Vanguard affect strategic deck building and gameplay, particularly when transitioning from Grade 1 to Grade 3?
**What are the key differences between the main clans in Cardfight!! Vanguard, and how do these differences influence the playstyles of their respective decks?
5. **How did the use of coinage spread across different empires and civilizations, and what impact did this have on international trade and economic interactions?
4. **What are some of the most significant discoveries of ancient coin hoards, and what have these finds revealed about trade, economy, and historical events?
2. **How did the designs and inscriptions on ancient coins provide insights into the cultures, religions, and political structures of the civilizations that produced them?