Complex sentence: In 2011, Activision Blizzard debuted its "Skylanders" franchise, which led to the press crediting the company with inventing and popularizing a new toys-to-life category.
Split into simpler sentences: In 2011, Activision Blizzard debuted its "Skylanders" franchise. With this launch, the press has credited the company with inventing a new toys-to-life category.