Rain's not an ambitious cat. She doesn't dream of being deputy, or of becoming a great fighter. Though loyal to her clan, she isn't fond of fights or getting into boarder skirmishes; though for the right cause she'd bare her claws like any other warrior. Instead, Rainstripe is rather good at hunting. She loves the thrill of the chase and the sense of pride in providing for her clan.
Currently she'd be pleased with becoming a mentor, but isn't going to hold it against any cat if Starclan has other plans for her. She might also like being Queen and raising kittens, though she's not sure if she could take being inactive for so long.