Bofur, the Bard

Sacrifice a Treasure: Exile the top card of your library, you may play that card this turn. Activate
only once each turn.
Brotherhood with Bifur, the Unhinged and
Bombur the Wide (If you control either Bifur or
Bombur, then Bofur gets +1/+1, if you control both
then Bofur instead gets +2/+2; you may have multiple commanders if they are all in a brotherhood.)