A creation of Bob Haney, also known for co-creating the Teen Titans and Metamorpho, and Mike Sekowsky, the premiere artist on Justice League of America, B'wana Beast's adventure fighting the possibly-immortal Hamid Ali and his giant, orange, crocodile-shaped tank from DC Showcase #66-67 (1967) somehow failed to resonate with readers, and he was doomed to the back-issue bin for almost twenty years. When Grant Morrison re-introduced him in the late 80's, Maxwell teamed up with Animal Man to save Djuba from wayward research scientists, ultimately retiring and passing on his mantle, only to re-emerge some time later as the evil Shining Man. When he was promptly killed.
And that's pretty much it.
According to Toonopedia.com there was supposed to be a third DC Showcase issue, but Sekowsky found the concepts to be racist, left the project, and was never replaced. He was probably justified. And, while the jungle tropes used were outdated by a few decades when the story was first printed nearly 50 years ago, B'wana Beast is still just so darn cool. Well, ... maybe not "cool."
With less than a dozen issues under his loincloth, Mike Maxwell's defining characteristics are still up in the air. His comic origin plays like a greatest hits mashup of unlikely circumstances just begging to be streamlined, and his powers are essentially Aquaman's but on land, except Aquaman never merged a seahorse and a hammerhead shark together to attack a submarine. In his appearances on Batman: The Brave and the Bold, he wasn't even a game warden, but a wrestler who was splashed with radioactive waste.
So, in the spirit of exploration, you have a cumbersome (and potentially offensive) name, a bizarre set of powers, an exotic locale, the unusual battle cry of "KI KI KI KIUIIIIIII!", and ultimate free reign in tone and canonicity.
What more could you ask for?