Tincture of Silver
The Tincture of Silver was an item available during the Treasures of Doom event that took place during the 2014 Halloween season in Dungeon Doom. It was obtained by trading in artifacts with the NPC trader at the entrance.
When applied to a weapon, the tincture gave a timed slayer damage bonus to all creatures within Doom. However, during the 2019 Halloween Treasures of the Sea event, the tincture was changed to affect Soulbound creatures instead.