Warming Stones

This accessory increases the speed at which a butterfly can mate. Similar to the Longevity Pool, multiple warming stones increase the chances that butterflies interact with the stones each minute-cycle. However, a butterfly cannot benefit from more than a single stone’s bonuses each cycle. Assuming the butterfly benefits from a stone’s boost every cycle, the butterfly’s mating cycle can be shortened by as much as 15-20%.

While shortening the mating cycle by a few hours may over a few day’s time may not seem like a major benefit, given 10-15 mating cycles worth of time, you’ll have gained two or three mating cycles worth of offspring.