u fight him at one of valencia's quests.
go to the guardian tower and train all your skills. then you'll have to fight him as your last one.
defeat gen. varax (boss fight)
go to the southern side of falconreach and go left then talk to xan
He is a paladin, that can fight with you (not against you) and his damage ranges from 10-100 (his highest, ((for me)) was 150!)
None you get a battle core at crsoc
Doomkitten is the boss you must fight, lest you getting a really good water weapon, yw
To fight Fluffy and Sepulchure you have to finish either the pirate or ninja saga. You have to have a dragon though and it is easier if you have a DA.
You have to buy the fisherman outfit then fish. You'll get a tiny fish that will cue a cutscene, then you have to fight through the pirate ship.
there are no cheats in dragonfable
At the dragonfable Website
dragonfable
Are you sure you're asking for it in Dragonfable? Because there is no Kaya City in Dragonfable.