Thunderstorm Axe

Thunderstorm Axe is a Main Hand weapon usable by Marauders and Warriors.

Source
Thunderstorm Axes can be purchased from vendors, obtained as a quest reward, or crafted.

Vendor
Thunderstorm Axes can be purchased for 2,271 gil from the following vendors:
 * Junkmonger - Memeroon's Trading Post, Upper La Noscea
 * Merchant & Mender - Fallgourd Float, North Shroud (X:21.6 Y:25.8)
 * Arms Supplier - Quarrymill, South Shroud
 * Arms Supplier & Mender - Buscarron's Druthers, South Shroud
 * Merchant & Mender - Little Ala Mhigo, Southern Thanalan
 * Merchant & Mender - Vesper Bay, Western Thanalan

Quests
Thunderstorm Axes can be obtained as a quest reward from the following quests:
 * Bleeder of the Pack
 * Foot in the Door

Crafting
Thunderstorm Axes can be crafted by Blacksmiths. It is a level 26 recipe that uses the following materials:
 * x1
 * x1
 * x1
 * x2
 * x2