Crystal Amulet

The Crystal Amulet was seen in the 7th season and 8th season only the apprentices wear it(except Rikka and Hikaru) for safety. Hikari made this with the power of her Necklace

Function
The Crystal Amulet can use to call their spirits or heal the people wounds.

The Apprentices have a different functions like:
 * Dan Kuso: Use to make him brave (First use in 7th season episode 17)
 * Marucho Marukura: Use to make him not cowardly(First use in 7th season episode 14)
 * Shun Kazami: Use to make him not sad(First use in 7th season episode 15)
 * Mira Clay: Use to make her calm peoples(First use in 7th season episode 7)(In the fourth movie,she is able to change her eyes into legendary called "Spirited Souls" until 8th season)
 * Ace Grit: Use to make him believes people on him(First use in 7th season episode 13)
 * Baron Leltoy: Use to make him cheer other peoples(First use in 7th season episode 3)
 * Runo Misaki: Use to make her not so stubborn herself(First use in 8th season episode 34)
 * Julie Makimoto: Use to make her not compare to her own siter(First use in 8th season episode 37)
 * Alice Gehabich: Use to make her not afraid of her own fear(First use in 8th season episode 32)

Danma "Dan" Kuso
The first apprentices to gain the Amulet. Hikari gave to him this in the First episode as the apprentices,He received the "Courage Flame" Amulet and become the first person to get this. Dan also has a Spirit called "Nova Neo Dragonoid" the spirit from Nova world.

Mira Clay
The second apprentices to gain the Amulet. Hikari gave to her in The Second episode when she become an Apprentice,She received the "Power Earth" Amulet. Mira also has a spirit called "Subterra Thunder Wilda" the spirit from Subterra world.

Baron Leltoy
The Third apprentices to gain the Amulet. Hikari gave to him in The Second episode when he beecome an Apprentice,He received the "Crystal Light" Amulet. Baron also has a spirit called "Lumina Mega Nemus" the spirit from Lumina world.

Ace Grit
The Fourth apprentices to gain the Amulet. Hikari gave to him in the Thirteenth episode when Amu offers him as an Apprentice,He received the "Moonlight Darkness" Amulet. Ace also has a spirit called "Darkon Percival" the spirit from Darkon world.