Organized Chaos
Very rare1.0%ObjectiveOptionalAnywhere
Find the ultra rare Rod of Discord.
The Rod of Discord drops from Chaos Elementals in the Underground Hallow at a miserly 1-in-500 (a fifth of that in Expert). Farm the pearlstone caverns with a Battle Potion and Water Candle - a small artificial pearlstone strip in the caverns makes a tidy farm. The rod teleports you to your cursor at the cost of a health-draining debuff if you spam it; genuinely useful for the endgame bullet-hell fights, so the grind pays.