Please understand that this logo is for our company, which will be selling apparel (shirts, shorts, hats, etc) for CrossFit athletes. If you need to know what CrossFit is, search on google.
We want it to be incorporated in the design the Beast concept, as well as highlighting the "RX" in the name, which means "prescribed". Being a "Beast" in the world of Crossfit means to be the best, go all out, or work as hard as you can with great results.
The slogan can also be used with the logo, but not necessary.
Hope this helps.