Gold is considered one of the most volatile trading pairs. Here are some key points to keep in mind before trading gold:

1. Global Economic Uncertainty: One of the main factors contributing to high volatility in gold is global economic uncertainty. As a safe-haven asset, gold tends to rise in value when investors are concerned about the global economy.

2. Interest Rates: Banking interest rates play a crucial role in gold price movements. When interest rates rise, there is often downward pressure on gold prices. Conversely, when interest rates fall, gold can become more attractive and, consequently, more expensive.

3. Geopolitical Events: Events such as wars, trade disputes, and political instability can also increase volatility in the gold market.

However, whether XAU/USD is the "most exciting" trading pair is subjective and depends on your individual trading style and risk tolerance.

If you're considering trading XAU/USD, it’s important to conduct through research and understand the risks involved. You should also develop a solid trading strategy and stick to it, even when the market moves against you.