Elder Gragus

Elder Gragus is a Unique Monster in Xenoblade Chronicles that is a member of the Quadwing family. It can be found at level 34 on high ground east of the Nopon Arch in the Makna Forest. The Elder Gragus must be defeated in order to complete the "The Old Soldier's Test" quest. It can drop an All-Seeing Eye, three of which are needed for the "Secret Elixir Ingredients" quest.

Chests rates

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

Wood

 * Materials
 * All-Seeing Eye - 77%
 * Scienti Glyph - 23%

Silver

 * Crystals
 * Night Vision II / Bleed Plus II - 23.1%
 * Night Vision II / Aerial Cloak II - 23.1%
 * Weapons
 * Dark Cannon - 7.9%
 * Saint Rod (3 slots) - 5.8%
 * Saint Rod (2 slots) - 5.3%
 * Dream Gnasher - 4.1%
 * Armors
 * Rescue Cuffs - 9.2%
 * Rescue Cap - 8.7%
 * Panther Cap - 7.7%
 * Panther Gloves - 5.2%

Gold

 * Weapons
 * Illunis Defender - 7.5%
 * Gale Shot - 7.1%
 * Ironwall Gnasher - 6.2%
 * Crushing Guarder - 4.2%
 * Unique Weapons
 * Queen Frog - 9.6%
 * Glass Rod - 9.4%
 * Firing Hammer - 5.9%
 * Unique Armors
 * Serpent Armour - 13.7%
 * Serpent Gear - 13.1%
 * Serpent Gauntlets - 11.5%
 * Serpent Leggings - 7.7%
 * Serpent Boots - 4.1%