Classic FFXI community

Enhances defense and covers you with magical ice spikes. Enemies that hit you take ice damage.


Spell cost: 28 MP
Ecosystem: Luminions
Type: Magical (Ice)
Blue Magic Points: 5
Stat Bonus: INT+3 MND+3


Casting Time: 3 seconds
Recast Time: 60 seconds
Duration: 120 seconds

Combines With...

You can use Reactor Cool as part of a combo to create Magic Attack Bonus.

Can be paired with any of the following spells to create Magic Attack Bonus combo.


  • Adds approximately +12% Defense.
  • Defense up effect does NOT stack with Cocoon, and will overwrite the 50% increase from Cocoon. However, reapplying Cocoon will give you the 50% defense boost again, while maintaining the Ice Spikes from Reactor Cool.

Skillchain/Magic Burst Info


How to Obtain

Acquired From

Mob Family: Zdei
Minimum Blue Mage Level To Acquire: 65 with Magus Jubbah equipped, 68 without Magus Jubbah
Name Level Zone
Aw'zdei 76-80 The Garden of Ru'Hmet
Eo'zdei 77-78 Grand Palace of Hu'Xzoi