This is the Halloween unlimited harvesting tool in GW2. It is a jack-in-the-box clown with a scythe. I picked one up just after they became available and equipped it on the latest character I have been leveling. I didn’t think that one through. I don’t think I even watched a video of the animation.
A week later I had a nightmare involving a seven-foot-tall Joker with a scythe. Reading about New 52 Joker couldn’t have helped that.
Fast-forward to the latest Living World content, released while that scythe is for sale. Groups of 4-5 toxic seedling harvest nodes appear together. They tend to sprout up near the Living World events, so picture the 40-person zergs that swarm those the first night. 5 or 6 people in the event zerg have the jack-in-the-box. In less than a minute, thirty scythe clowns pop out of nowhere to harvest. Listen to that wheezing laugh again, and imagine dozens of them, slightly offset and overlapping, repeating the whole time.
Emergent behavior: creating quality Halloween creepiness.