One of the joys of playing with toys as a kid is mashing up different toys from different genres. Barbie and Optimus Prime can live together in the Paw Patrol Lookout Tower with nary an IP lawyer in sight. That can also go for battles where superheroes can throw down with LOL dolls for all sorts of reasons.Not only did players build forces from multiple styles of heroes and villains, they built the battlefields using a set of interlocking and stackable hexagons.
The second was the bountiful hexes that could be built and rebuilt into terrain in minutes. The more boxes purchased, the bigger and more intricate the battlefield could be. It was also a hit with more traditional miniatures gamers who could use it with their favorite games that they already played.