Can I cross the US border with my Métis card?

Could you elaborate on the possible implications and challenges involved in crossing the US border with a Métis card? As a cryptocurrency and finance professional, I'm curious to understand the legal standing and potential risks associated with this scenario. Would the Métis card be considered a valid travel document? Are there any specific regulations or restrictions that need to be considered? What are the potential implications for financial transactions or asset holdings if one chooses to do so? I'd appreciate your insights on this unique and intriguing question.