The Abyssal Waterskin

The Abyssal Waterskin is a cursed and eerie item that appears as an ordinary waterskin, but it is marked by ominous, swirling patterns that resemble deep, dark waters. It has an unsettling weight, even when empty.
When someone takes a drink from the Abyssal Waterskin, they are overcome by a sensation of drowning in an endless, dark sea. Their vision blurs, and they briefly experience vivid and terrifying underwater scenes, as if they are trapped in a nightmarish ocean. The waterskin's power is both a curse and a potential source of insight, as it can provide glimpses of hidden underwater treasures or hidden paths.
The Abyssal Waterskin might be found as a mysterious artifact in a sunken shipwreck, a cursed pirate's treasure, or a haunted coastal cavern.