In crypto it seems there are few who tally multiple wins and sustain upward trajectory.

One big one is enough to make you relevant, and for a while. 

Building is itself playing in a casino.

I'm relatively inexperienced, but think I need to lean in my core proficiency in brand strategy. The ultimate moat won't change

Absolutely, building a strong brand strategy can indeed serve as a significant moat in crypto. It helps differentiate and attract a loyal community, crucial for long-term success. Keep focusing on your strengths!