Flask of Firewater

Acquisition

 * Zaishen Chest
 * Tesla in the Great Temple of Balthazar in exchange for 60 Copper Zaishen Coins and 10 Gold
 * Sheng Yi and the Zaishen Supply Master during any Shing Jea Boardwalk event for 10 Victory Tokens

Trivia

 * Firewater, a colloquial synonym for strong alcohol, derives from an American Indian term for whiskey.