Martin Juza shared this deck red-white aggressive deck built around Showdown of the Skalds on his Twitter.

Creatures (28)
1
Faerie Guidemother
3
Giant Killer
4
Usher of the Fallen
1
Rimrock Knight
4
Robber of the Rich
4
Seasoned Hallowblade
4
Shepherd of the Flock
3
Bonecrusher Giant
2
Sigrid, God-Favored
2
Goldspan Dragon
Spells (4)
2
Emeria's Call
2
Shatterskull Smashing
Artifacts (4)
2
Maul of the Skyclaves
2
Embercleave
Enchantments (4)
4
Showdown of the Skalds
Lands (20)
7
Mountain
4
Needleverge Pathway
7
Plains
2
Temple of Triumph
Cards (60)
Sideboard (15)
1
Reidane, God of the Worthy
3
Fight as One
1
Giant Killer
4
Redcap Melee
1
Glass Casket
1
Bonecrusher Giant
1
Mythos of Vadrok
2
Baneslayer Angel
1
Ox of Agonas