Mana Crystal

A Mana Crystal is a consumable item that increases maximum mana by 20 permanently, up to a maximum of 200 total. It takes 9 Mana Crystals to reach this maximum. It also restores 20 mana when used, but only as long the character's maximum mana is below 200. Mana Crystals are created by combining 3 or 5  Fallen Stars.

Trivia

 * Mana Crystals can be considered the mana counterpart to Life Crystals.

History
Cristal de mana 魔力水晶