Someone played a bear deck at the last Legacy GP.
I really love this, for so many reasons. First, because I feel like decks like this-even if they are clearly not tournament worthy-are worth getting out there and are precisely why Legacy is a great format. I don't play Legacy seriously and the reason why is that I like having this massive playground of ideas to tinker with. Taking Legacy seriously means playing the best deck, always and there's a huge chunk of fun that gets overlooked.
Second, I once build a bear deck for my ex-girlfriend. It wasn't quite as tightly themed as this one but many of the cards were the same, as you might well consider for a bear deck. I think I went the Overrun route though and I have to say, that deck had some fun times in it. You could easily find yourself on the end of a massive bear beatdown. Good times.