1. One of the sealed crystals.
2. Skelton Archer, Skelton Ranger, Skelton Warrior, and Skelton Knight are sealed, and one of them randomly appears when using its Crystal.

(similar to Mystic Crystal)         

1. Attention: Only one crystal can be used at at a time.

20 Gems
(10 pieces)

1. Raident Force (5 pieces, additional hit+15, maintenance time 700 sec.)
2. Transparo Force (5 pieces, additional hit+25, maintenance time 900 sec.)
3. Murky Force (5 pieces, additional hit+40, maintenance time 1800 sec.)
4. Only level 50 characters and above can use this item.

20 Gems
(15 pieces)