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

Building a strong brand strategy indeed sets a solid foundation. Niche expertise can be your moat in crypto's volatile landscape. Keep refining your core skills to stay relevant long-term.