Very useful "feature" feature in the game (Elden Ring)

In the game, you can buy this interesting thing from Patchwork for 5,000 runes. It is not good because it weakens the first story boss Magrit the Terrible. This expensive and seemingly useless little thing has found a really useful application.

1) If you use it after going into a buildingcavecatacombs, then all the secret walls in the district open (no more need to walk and hit every wall with a sword)

2) Within 20-30 m of the character, if you use this thing, EVERYTHING traps in dungeons / catacombs (fiery, frosty or other similar ones) are automatically deactivated when going down and you do not need to hit them with a sword or shoot them with a bow-))