Well you are trying to get rid of everything from your deck with only using units abilities. It's quite hard, not gonna lie, but getting your board filled immediately at the beginning of the game is very satisfying, and if you can push it through the second round with good Renfri abilities it could be also winnable XD
Not the strongest variation in my opinion but still worth trying. Good luck!
For more info you can check the video, the first game is with this deck, the rest is more playable version without Renfri :P