You might not guess it, but the card with the people bareknuckle boxing is super good with the boxer. The joy of this card is that it’s a natural upgrade from Mano(1), and you can earn it by killing victory point monsters that other classes simply can’t do enough damage to.
Three damage guaranteed is enough to build a deck around. Have your allies take Stargazing, take First Watch or On the Hunt...Use "Get over here!" during enemy, upkeep, or mythos. You’re already playing Nathan to punch the crap out of horrid monsters. Make it easier, and recur it with your elder sign. You’ll appreciate cheap damage in guardian.