North Star Gusion

North Star Gusion is a Lexos that is a Unique Monster in Xenoblade Chronicles. It can be found at level 50 flying off the west edge of the Url Crevasse in the upper level of Valak Mountain at night while snow is falling or blizzard is arising. It can drop a Silver Lexos Heart, two of which are needed for the "I Want to be a Homs!" quest.

Chests rates

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

Wood

 * Materials
 * Silver Lexos Heart - 85%
 * Dialek Glyph - 15%

Silver

 * Crystals
 * Electric Plus III / HP Up III - 31.3%
 * Electric Plus III / Chill Defence III - 31.3%
 * Weapons
 * Spirit Rifle - 5.2%
 * Siege Gnasher - 4.4%
 * Cloud Staff - 2.9%
 * Armors
 * Snow Cream - 7.5%
 * Snow Oil - 7.1%
 * Snow Trunks - 6.2%
 * Amethyst Armour - 4.2%

Gold

 * Weapons
 * General Driver - 9.5%
 * Disaster Cannon - 7.9%
 * Autumn Staff - 5.3%
 * Unique Weapons
 * Rock Winder - 5.8%
 * Endymion - 5.5%
 * Flash Shield Elfidar - 4.9%
 * Longevity Biter - 4.1%
 * Jailer Staff - 2.5%
 * Unique Armors
 * Climb Armour - 11.7%
 * Climb Gauntlets - 10.9%
 * Climb Gear - 9.7%
 * Climb Leggings - 8.2%
 * Climb Boots - 4.9%
 * Advanced Books
 * Air Slash - 4.1%
 * Blinding Blossom - 2.8%
 * Spear Break - 1.5%
 * Freezinate - 0.7%