Armoured Rockwell

The Armoured Rockwell is a Unique Monster in Xenoblade Chronicles that is a member of the Torta family. It can be found at level 82 on Bionis' Leg under Viliera Hill but only during rainstorms or thunderstorms. It can drop the Immortal Moss which is needed for the "Replica Monado 2" quest.

Chests rates

 * Wood = 0%
 * Silver = 0%
 * Gold = 100%

Wood

 * Materials
 * Immortal Moss - 81%
 * Creare Glyph - 19%

Silver

 * Crystals
 * Arts Seal Resist V / Aggro Up V - 25%
 * Arts Seal Resist V / Good Footing V - 25%
 * Weapons
 * War Blades - 5%
 * Empire Pike (2 slots) - 4.7%
 * Titan Guarder - 4.2%
 * Eternity Knives - 2.8%
 * Armors
 * Hierax Top - 11.4%
 * Z Speed Frame - 8.4%
 * Lancelot Armour - 7.6%
 * Rex Greaves - 5.9%

Gold

 * Weapons
 * Empire Pike (3 slots) - 10.3%
 * Hero Biter - 5.1%
 * Unique Weapons
 * Reward Nibbler - 10.3%
 * Bonus Staff - 5.1%
 * Unique Armors
 * Asura Cuisses - 11.5%
 * Asura Plate - 10.9%
 * Eclipse Armour - 9.6%
 * Eclipse Leggings - 6.5%
 * Advanced Books
 * Second Gear - 14%
 * Say Sorry - 9.4%
 * Magnum Charge - 5%
 * Head Shot - 2.3%