The The Taken King Add-on for Destiny has 10 trophies - 8 bronze and 2 silver.
Complete "The Court of Oryx" quest.
Complete "The Wolves of Mars" quest.
Complete "The Taken King" quest.
Complete "The Sunbreakers' Challenge" quest.
Complete "The Old Hunger" quest.
Complete the "Echoes of Oryx" quest.
Complete "The Stormcaller's Path" quest.
Complete "The Nightstalker's Trail" quest.
Complete the King's Fall Raid.
Complete the King's Fall Raid (Heroic).