Foxy Fox
From EZ Server Wiki
Loot Foxy's Gambling Coins from mobs, hailing Foxy will allow you to gamble all the coins you have for the next rank.
Loot a Rusted Aug to begin with to try and win the Silver Augment.
If you fail, you do not loose your current augment.
If successful and win, you will keep the prior augment. You only gamble the coins.
You could win with a few hundred coins, or may take thousands.. Do you feel lucky!!