The Spun-Sugar Colossus
Festival colossus · The Pumpkin King
On All Hallows' Eve somebody was told to picture the most harmless thing they could, so the Pumpkin King couldn't use it against them. It is forty feet tall, smells of vanilla, and it is walking towards the Market.
Its mechanic: Don't cross the streams
Each different vampire who swings within the same ten minutes adds +10% damage for everyone in that window, up to six. A seventh crosses the streams: the Colossus bursts, everyone in the window is splattered (a quarter of their Lifeforce) and the window starts again. Sticky sugar also wears your weapon now and then.
Rare looks it drops
Everyone who strikes it has a chance at one piece whose look they haven't collected yet. Soulbound, and kept in the Wardrobe for good.