You can synthesize a Great Dragon & Bone Baron later on in the game to get a Black dragon.
http://www.gamefaqs.com/portable/ds/file/933956/50785
on this website it has the complete monster list and tells you how to get everything
great dragon + bone baron = black dragon any rank A monster + any dragon monster = great dragon grim rider + mohawker = bone baron
Incorrect. Dragon Quest Monsters IV: Joker. It is an iteration of one of Dragon Quests's side series, and contains familiar but unique gameplay. In many ways, it can be described as Dragon Quest VIII converted into a Dragon Quest Monsters game.
Yes, they do exist.
You can't but you can make one @ dragon quest monsters.com
Karthus
If you want a Great Dragon you can synthesise Drakularge + Jamirus or Any Class-A + Any Dragon. http://www.flamingbaby.com/gaming/tips-and-tricks/dragon-quest-monsters-joker-monster-list-and-breeding-guide.html
As far as I know, DarkKings don't appear in Dragon Quest Monsters Joker. It was only in a few Dragon Quest games.
you hit him
yes
you can get it from certain monsters
fight scout go in battle with get all the monsters
as far as i know, no. However you can finish the black dragon box quest and in the end you get a dragon