The Amulet of Daylight is the most important aspect of the show, Trollhunters. It is a magical amulet created by Merlin, which acts as both the source of power and a symbol of office for the Trollhunter. To make the amulet work, the user must say, "For the glory of Merlin, daylight is mine to command." After requiring all three Triumbric Stones, "For the doom of Gunmar, Eclipse is mine to command.".
When the Amulet is activated, it grants the user the Trollhunter Armor and the Sword of Daylight. The amulet responds to the emotions of its owner and can be improved by using different magic gems.
The Amulet was said to be created by the wizard Merlin for his Trollhunters to use. Merlin took Morgana's left hand to make the amulet. According to legend, he made it malleable so each Trollhunter could combat the darkness that even its creator could not foresee. It is unknown how old the amulet is or how many Trollhunters have wielded it.
Deya the Deliverer used the Amulet to seal the Killahead Bridge, trapping Gunmar and his Gumm-Gumms in the Darklands before the bridge was torn to pieces.
Sometime after trolls settled in America, the amulet fell into the possession of Kanjigar the Courageous, who would become one of the best Trollhunters. To focus on his training and serving troll kind, Kanjigar chose to distance himself from his young son Draal, who began training to become worthy of the amulet.
Kanjigar was defeated and disarmed by Bular, the son of Gunmar, under a bridge in Arcadia Oaks. To prevent the amulet from falling into Bular's hands, Kanjigar sacrificed himself by falling into the sunlight, petrifying himself and keeping the amulet out of Bular's reach.
First Human Trollhunter
On his way to school, Jim Lake Jr. and his best friend, Toby Domzalski, discovered Kanjigar's remains in the canal, along with the amulet, which called Jim's name. After school, Jim managed to activate the amulet while also meeting his trainers, Blinky and AAARRRGGHH!!!
It is a compact metal amulet with intricate metal parts inside the external framework and was fashioned from Morgana's left hand. The glowing blue stone in the center of the amulet is the source of all the amulet's power. When the three Triumbric Stones are inserted in it, the central stone glows a blood red.