After 200 hours of in-game hours played, speed clearing anywhere between 300 to 500 corruption, I have yet to find a single item with 4LP on it (Merchants Guild).
This has to be a joke. I have spent 90% of my time clearing through Reign of Dragon looking for a 2-4 LP Apogee of Frozen Winter, and have found only three 1-LP Apogee’s.
Want to buy a single 3-LP Apogee off the market? That will cost you 100m+
Absolute trash.