CBM 1.21 forging reference is attached. It contains 2 .pdf files.
The first pdf, "Single Path Forging Reference," looks like this:

Under each of the 8 magic paths, all the "single path" items are listed, grouped by the magic-level needed to forge them, and color-coded to indicate the needed Construction level (blue = Const0...red = Const8). Items that boost magic paths are italicized.
The second pdf, "Dual Path Forging Reference," looks like this:

It's a consolidated matrix that groups all similar "dual path" items together, includes the path requirements, and follows the same color convention as before.
EDIT: Removed Carrion Woods "Fix"