Divine Eye

Divine Eye allows you to see things depending on your level. At level 1 you get darkvision, at level 3 you get the ability to see magic items(they glow blue, at level 10 the magic items glow different colors depending on what it does(such as green if its a healing item or red of it has a curse), at level 6 you get the ability to see minor illusions(at level 12 you can see all illusions, at level 15 you can see through walls that are less than 5 feet thick(at level 20 you can see through walls at 10 feet), you can ask your patron(or DM) for more abilities that you can unlock at a certain level or you can get them by exchanging something for it.