Merlin Trials are an activity found in most regions of Hogwarts Legacy, and completing them will increase your gear slots. Here's how to complete all six West Hogwarts Valley Merlin Trails in Hogwarts Legacy.
Hogwarts Valley: All 16 Merlin Trial Location & Puzzle Solution | Hogwarts Legacy
In Hogwarts Legacy, there are six Merlin Trials surrounding the West Hogwarts Valley Floo Flame, which can be completed by simply solving puzzles. Check out the yellow circles on the map above to see the exact location of all six Merlin Trials in West Hogwarts Valley.
Remember that you will need Mallowsweet Leaves to start a Merlin Trial, which you can purchase from the Magic Neep shop in Hogsmeade Village. In order to start the Merlin Trials, you must complete the Trials of Merlin main story mission in Lower Hogsfield before attempting any other trials.
In West Hogwarts, three Merlin Trials are located west of the West Hogwarts Valley Burn Flame, and the other three are located directly north of Keenbridge.