>>535310386
Short for Rhinoceroach, it's a combo deck that finishes with the eponymous card after playing other cards to boost it. It's a really hard deck to play, so watch JP pros and learn from them. It instaloses to Ward Haven, but if you're okay with that it beats every other deck in the game with good planning and plays. Picrel is a decklist I copied from the guy in the following link.
https://www.youtube.com/watch?v=iRdzPH8rMjA