I also had this idea that maybe there's a control mechanism at the top of the stairs to control the crane-like device to even target Gimblebock and Taman.
So, maybe allow players to stealth up on Warryn, the halfling lookout on the west side. If you take him out during surprise round, no alarm sounded. Drop down and use ladder to get up to the other side where Cefrey the wizard patrols. There is the control mechanism. Trigger it and BAM! BYE BYE Gimblebock and Taman.
Or, even during combat, you Misty Step up to the controls or just Dash to them. You can use an Action to target anyone near the block within maybe 10 feet of it's original position.
Last edited by GM4Him; 06/08/22 08:43 PM.