darkSpyro

I've been seeing a lot of Skylanders-related stuff in the Fandom, so I'm REALLY wondering what's the big deal with this game. I mean, I know Spyro isn't the focus anymore, but really...

Lets see the big deal is you put a funny looking toy with a computer chip on a fancy scanner and you get to use that character the toy represents in a video game.
Its a very cool concept .
Your funny purple half donkey/ rat thingy dragon was used to help market this concept and in turn made some new fans for your vintage game.

Dude, I know that already, but thank you. However, you failed to tell me the STORY.

This is from the Skylanders wiki, it's like champions from many different dimensions and worlds (including human portal masters and Spyro from his world) that have come together to protect Skylands:

History
It was said that the Giants were the original Skylanders, and the first to exist. The Giants battled against the tyrannical Arkeyans for the freedom of Skylands. In a final battle against the Arkeyans, the Giants were shot to Earth as a form of sacrifice, where they’ve been buried underground ever since. As the years passed, the enormous Skylanders were soon considered as a myth.

Time went on, and many brave Skylanders helped protect Skylands from all things evil, and protecting the Core of Light from the forces of darkness. Despite the fact that the Skylanders come from different realms and worlds, each know that it is their destiny to use their abilities to protect Skylands.

The Skylanders have an unbreakable bond with their Portal Masters. Though they are not servants, the Skylanders chose to serve their Portal Master and do so eagerly.

Skylanders: Spyro's Adventure
For generations, the Skylanders worked with the Portal Masters in keeping peace and balance in their world, battling the forces of darkness, and protecting the Core of Light. The Skylanders were previously led by the veteran Portal Master, Master Eon, who was their leader, until The Darkness returned one day. Seeing the incoming threat, Eon called upon six of the Skylanders to prepare for battle as the evil Portal Master, Kaos, returned from his exile to once again attempt to destroy the Core of Light and rule Skylands as its emperor. By Eon's command, the Skylanders fought valiantly against Kaos's dark forces, but as they were winning the struggle, Kaos released his Hydra, who successfully destoyed the Core of Light in a devastating blast.

Shortly after the Core's destruction, all of the Skylanders were banished from Skylands to Earth, where they were turned into toys as a result of Earth bearing no magic, and waited for a new Portal Master to find them. Although Master Eon survived the destruction of the Core of Light, he became a spirit and was unable to fight Kaos and The Darkness, leaving the duty of leading the Skylanders to the new, young Portal Master. After Master Eon recruited the new Portal Master, the Skylanders made their suprising return to Skylands, arriving on the Shattered Island to save its Mabu inhabitants from a freak tornado that was ravaging their village. The heroes then began their quest to save Skylands from Kaos' tyranny with the new Portal Master guiding them.

After Kaos's defeat in his lair, three of the Skylanders (Spyro, Gill Grunt, and Trigger Happy) returned to the Ruins with the captive Kaos, and Hugo later banished the evil Portal Master to Earth where he was shrunk and turned into a toy. However, Master Eon hinted to the new Portal Master that the journey with their Skylanders was only the beginning.

Doesn't seem too much of my type, but thank you.