Add rare drops to some monsters, with a very low probability (around 0.1%). These could be artifacts or otherwise unattainable items.

Candle additions:

• Wielding a candle gives it a light radius of 3 (at the obvious expense of not having a weapon).
• Hitting enemies with a lit candle (thrown or melee) has an 80% chance of extinguishing the flame and a 20% chance of lighting them on fire, doing 2d3 fire damage.
• A lit candle can be applied to an adjacent burnable object (door, tree, wood golem, paper golem) to light it on fire.