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. Cheap Construction is a unique Viridian Jewel.
10% reduced Trap Duration
Can have up to 1 additional Trap placed at a time
Why waste the good stuff on something that's going to blow up?
A simple tool to price check your items in path of exile by "copy and paste". It is that simple!
Price in Leagues