This DLC is themed around Fire Emblem: Shadow Dragon.

New Playable Characters:
Navarre, Minerva, and Linde.

Three new History Mode maps, each retelling a story from the Fire Emblem franchise.

New Costumes:
Marth, Bridegroom; Caeda, Bride; Tiki, Vibrant Dress; and Lyn, Swordmaster.

New Weapons:
Caeda, Wing Spear; Tiki, Divinestone; Anna, Anna's Bow; Navarre, Wo Dao; Minerva, Hauteclere; and Linde, Aura.

Broken-Armor Models:
Marth, Caeda, Tiki, Celica, Lyn, Anna, Navarre, Minerva, and Linde.

More details on the official game page of Fire Emblem: Shadow Dragon DLC Pack ...