 If you liked Pokemon |  ...then you might like Marvel Disk Wars: The Avengers |
Both are shows targeting mainly on kids. The main hero is a young boy who obtains some creature/hero contained in some device (pokeball/disk) and battles with said creature/hero against other device owners.
Both focus around a group of kids collecting and finding a certain type of creature to help them save the world against the bad guys.
report Recommended by Disapeared_Ghost