Firefly

The Firefly minifigure is desirable for collectors due to its unique design and the character's status as a notable Batman villain. The helmet with large red eyes is particularly striking, and the printed torso armor adds to the figure's visual appeal. As a relatively recent addition to the LEGO Batman lineup, it represents a modern take on a classic character.

Collectors also value this minifigure because it's only found in one set, making it less common than some other Batman villains. The set it appears in, Batman Mech vs. Poison Ivy Mech, is now retired, further increasing the figure's desirability. Mint condition figures with all accessories are especially sought after.

This Firefly minifigure is considered moderately rare because it only appears in one retired set (76117-1). While the set was available for a reasonable period, the single appearance of Firefly makes it less common than minifigures appearing in multiple sets. Aftermarket availability is present, but prices can fluctuate based on condition and completeness.

The Firefly minifigure has decent investment potential, driven by its limited availability and the enduring popularity of the Batman theme. Given that it only appeared in one retired set, its value is likely to appreciate over time, especially if the character gains more prominence in other media. Keeping an eye on its value trends and comparing it to similar Batman villain minifigures can provide insights into its future investment performance.