Congrats to sukistorm for guessing the last cat! It was Longtail! Here's the next one..
Fur of blue,
Destiny great,
Life of sorrow,
Mate with oak,
Kits of three,
Snowy night,
One kit died,
Heard prophecy,
Noticed young fire,
Sent young grey,
New member,
Died long life,
Prophecy fulfilled

Who am I?
Guess please!