When I saw this deck, I knew I had to feature it. Both Griselbrand and Gifts Ungiven are among my favorite cards and this deck is different than most of the things I've seen people doing in Modern.
Decks based on Gifts Ungiven typically feature an Unburial Rites and a fatty, as you can search for only two cards with Gifts and your opponent is forced to send them both to the graveyard. What this deck does differently is feature Gifts in a mostly aggressive deck.
I love that Smaland uses Griselbrand as the only fatty, as it's more aggressive than something like Iona, Shield of Emeria or Elesh Norn, Grand Cenobite, cards that are both focused on locking someone out of the game. Griselbrand combos well with Vapor Snag and Lightning Bolt, spells that are incredibly cheap ways to affect the board.
If you're looking for a super fun deck to try in Modern, I can't recommend this one highly enough.
Smaland's Aggro Gifts
Gerry Thompson is a former professional Magic player and strategy writer, whose career highlights includes a Top 8 at Pro Tour Gatecrash and two Grand Prix wins in Denver and Nashville. He's currently a development intern for Wizards of the Coast.