Once during each of your turns, you may cast a spell from your hand by paying life equal to its mana value rather than paying its mana cost
The most iconic play you'll find in a goblin deck is using your Prospector to sac a handful of goblins to play Muxus, Goblin Grandee as fast as possible and rebuild your board
If you needed more reason to run it, it also gets you an easy Landfall trigger from the cards I mentioned above, but also from Tireless ProvisionerTireless Provisioner and Omnath, Locus of the RoilOmnath, Locus of the Roil
He has passion
Seeing as Baldur's Gate is taken right from modern Dungeons and Dragons books, this focus on questing is nothing if not appropriate
If youre experienced with those programs, that might not be an issue, but it could be overwhelming for a newbie