This magical creature is said to systemize and store all Fire-related knowledge that Metal Units can hold within them. They may look gentle, but they are known for mercilessly criticizing anyone and everyone. Even the cynical Fire Ghosts get nervous and speechless around them. Though their harsh words may sound insulting at first, listen calmly and they insightful opinions on how to amend faults for the better. If you ever feel lost in life, you might want to seek one out.
Fire Crystals are best used as an ingredient for fusion, providing a base of 151,524 XP. When fused with Fire element units, it grants 227,286 XP, not including Great Success (x1.5) or Super Success (x2). The unit sells for 150,000 Zel.