Misako (Koko) / Lady Iron Dragon

This Misako minifigure, also known as Koko or Lady Iron Dragon, is desirable for Ninjago collectors due to her unique design and role in the series. The pearl titanium armor and orange hairpiece with tiara are eye-catching and distinct. As a key character in the Ninjago universe, Misako's minifigure is a must-have for fans looking to complete their collection of heroes and villains.

The minifigure's relatively limited appearances in only two sets further enhance its collectibility. Collectors often seek out minifigures that are not overly common, making this version of Misako a sought-after piece. The level of detail, especially the printed armor and skirt, adds to the overall appeal for collectors who appreciate high-quality LEGO designs.

The Misako (Koko) / Lady Iron Dragon minifigure appeared in two sets, both released in 2017. While not a limited edition or promotional item, its presence in only two sets over a single year makes it less common than minifigures that appear in multiple waves of sets. The sets themselves, Piranha Attack (70629-1) and Quake Mech (70632-1), have been retired, meaning no new copies are entering circulation through retail channels. Its rarity is moderate, as it's not exceedingly difficult to find on the aftermarket, but it's not as ubiquitous as some other Ninjago figures.

Given its moderate rarity and the popularity of the Ninjago theme, this Misako minifigure holds some investment potential. The value may gradually increase as the sets become harder to find and demand from collectors remains steady. While it might not experience explosive growth, it's a solid piece to include in a Ninjago-focused investment portfolio, especially if acquired in excellent condition. The key is to watch the trends in the Ninjago collector market and consider the overall demand for female characters within the theme.