Hearthpwn

An interesting new anti-aggro feature I think HS should introduce is having minions that are summoned to the field from a player's deck or hand (similar to how Patches the Pirate is summoned from a player's deck if a Pirate is played) if their health is reduced below a certain level.  Elder Scrolls Legends has something similar and it seems to create a nice balance between play styles.  Simply going to the face isn't always ideal since dropping a player below a certain threshold might result in a big minion entering the fray.  Ideally, these minions would be stout taunt minions.  The auto-summon feature would mean the minion wouldn't be a good value if it were played normally (e.g., if its a 6 mana cost minion then its stats would be slightly worse than a normal 6 mana cost taunt minion).  Also, these type minions would need to have limited availability.  For example, there might be one available as a neutral legendary since you don't want the board flooded with auto-summoned minions when you get your opponent below a certain amount of health.