This hero power can target minions in your Warband or in the Tavern.
Incredibly op (at least on release). Early to early-mid game hero power is basically 2 gold buy a minion per turn, that coupled with synergies with pass makes for incredible tempo early on. Plus the fact that you're funneling so many minions into one player can make it way more consistent for one player to snowball into a nuts build, which makes for a guaranteed top 2 most of the time.