Unreliable Rezno

Unreliable Rezno is a Lexos that is a Unique Monster in Xenoblade Chronicles. It can be found at level 96 middle island of the Great Makna Falls in Makna Forest during the day only after the "Final Challenge of the Sage" quest is accepted. It will only spawn if there is not a heatwave, which is signified by a shimmering distortion on the screen. It can also drop the Ocean Elixir of Life needed for the "Replica Monado 2" quest and for Colony 6 reconstruction.

Chests rates

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

Wood

 * Materials
 * Ocean Elixir of Life - 73%
 * Natura Glyph - 27%

Silver

 * Crystals
 * Initial Tension V / Spike Defence V - 23.1%
 * Initial Tension V / Topple Plus V - 23.1%
 * Weapons
 * Forma Spear - 7.9%
 * War Blades - 5.8%
 * Hero Biter - 5.3%
 * Devil Cannon - 4.1%
 * Armors
 * Hierax Top - 10.5%
 * Rex Helm - 7.8%
 * Rafaga Armour - 7%
 * Z Power Frame - 5.5%

Gold

 * Weapons
 * Meteor Staff - 18.4%
 * Eternity Knives - 2.8%
 * Vangarre Driver - 2.3%
 * Satellite Shot - 1.5%
 * Unique Weapons
 * High Entia Soul - 18.4%
 * Hrunting - 2.8%
 * Verdigris - 2.3%
 * Murakmor - 1.5%
 * Unique Armors
 * Agni Plate - 14.9%
 * Charge Gear - 14.2%
 * Lord Leggings - 12.5%
 * Agrius Helm - 8.4%