So, a few items are a little bugged, i was able to keep moving items around to make their stats just infinitely climb up until i could one shot everything
Get the item that increases left item by 1 and blocks right cell, put it in the bottom right, then in bottom middle put the weapon you want to buff
Move the weapon up one cell, then move the buff item up one cell, the buff gets applied to the weapon again
move the weapon down one, then the buff down one, the buff got applied again