Prior to the release of the Descent of Dragons and if you prepurchased it, Blizzard put out a beta for a new mode called Battlegrounds which is mainly a battle of the minions.
Battlegrounds is a game mode where eight players face off in 1v1 rounds, with the goal to be the last player standing. Each round consists of two phases. The Tavern Phase lets players purchase and sell minions, upgrade the tavern, use their hero power, and rearrange their minions’ attack order. Combat Phase has minions automatically attacking the opponents’ until one player (or both) has no minions remaining, at which point the victor attacks the loser directly.Wiki
Each player get a chance to choose a hero with unique powers. Some can become quite overpowered if you use them correctly. All minions are in a pool and some are limited the higher the tier so keep an eye on who has what cause there is a chance you can’t build that strong army you hope to get.
I’ve been playing for a decent amount of time now. I’ve even got in the top 4 100 times! Here are my stats so far
This mode is fun overall. Since the expansion is out it’s available to all but still in beta. Still don’t hurt to try. You can learn more about this mode on the WIKI. The official website is bugged so if you were to go to hearthstones website the link is broken.