“ Many weapons buried with the dead are buried for a very good reason as they have had a potent curse placed on them making them dangerous or near-useless to the living.”
“ L1 wizard spell
This spell must be cast for 31 consecutive days by one wizard to create a +1 sword,-2 to anyone else holding it(other than sword owner).No special ingredients or quality of blade, the only requirement on this part is it must be a short sword or longer and must be a true sword. The sword must draw blood from a living creature of at least 1-1 hit die every day and The blade is -1 until the 31st casting, when it becomes fully and permanently enchanted .Variants that enchant other weapons could be possible.”
“ A cave with weapons sunken into the walls, blades sticking out of the floor and ceiling, and so on. Possibly, any weapon used in it could be torn out of the hand and sink into the stone.”