The most obvious combo for Brought Back is the ramp with Lotus Field and two fetchlands. If you have these cards in your opening hand, then you'll have five mana on turn three.
This spell could also be very useful in blue-white control decks that could return planeswalkers from their graveyard, which don't care about being tapped or not. The loyalty abilities will work anyway, and can be activated twice in a turn.
But that is only a very short list of what one could do with the help of Brought Back. This card is really versatile and will definitely see a lot of play.