Four Silver Fangblades

The Four Silver Fangblades are needed in requirement to summon the Great Devourer; which will awakened, it will devour all of the people in Ninjago (in which includes Serpentine, too.). They were created from the Devourer's teeth. The colors of the Fangblades are green, red, blue, and just plain silver to corospond with the colors of the four main Serpentine tribes.

Locations
This is where the Fangblades are:
 * Hypnobrai: Mega Monster Amusement Park
 * Constrictai: The Serpentine Temple
 * Fangpyre: Fire Temple
 * Venomari: Unknown

The locations of the blades were revealed when the Anti-Venom from the Snake Staffs mixed.

Trivia

 * Despite them being called "silver" fangblades, although the Venomari Fangblade is gold, it is silver-metallic in the show.
 * The Four Fang Blades are found in the following sets: Lasha's Bitecycle, Samurai Mech, Epic Dragon Battle, and the Ultra Sonic Radier.