Some further details on what needs to be done can be found on Path of Exile Wiki:To-do list/Automatic upgraded from and issues can be posted on the talk page. Sin's Rebirth is a unique Stibnite Flask.
Creates a Smoke Cloud on Use
Gain Unholy Might during Flask Effect
Immunity to Ignite during Flask effect
Removes Burning on use
And from the ashes he rose, like a black cloud.The Sin of one became the Sin of many.
A simple tool to price check your items in path of exile by "copy and paste". It is that simple!
Price in Leagues