The first of the serialized chapters, Death Rattle, goes out today in Champions Online. Players will head out to assist Ladyhawke "investigate a brand new mystery in Millenium City". As a reward for helping out, players will unlock Magical Imbued Gauntlets Device.
This device lets you attack enemies with magical gauntlets, imbued with some of the strange power you encountered in the mission. Repeating it afterwards will get you Spell Deflection mods, which increase your resistance to magic damage.
Learn more on the Champions Online site.