Sliske's back with a very large bang. A giant scoreboard, parodying Guthix's Sword of Edicts, has smashed into the Grand Exchange's fountain! What is that menacing Mahjarrat up to? Earn XP lamps from Sliske's Scoreboard by collecting Sliskelion pieces. You can find these by skilling and killing around Gielinor just like strange rocks. Teleport to the scoreboard at the Grand Exchange after collecting 50 pieces to claim your XP lamp. You can do this once a week and it resets at 00:00 UTC every Wednesday. Speaking to the scoreboard will give you the option to opt-out of the event.