The Queen Black Dragon was once the most strongest and toughest monster in runescape before the Kalphite King quest released. Now the Queen Black Dragon is second to the Kalphite King which has combat level over 120. If you want to find how to buy a runescape account to complete the Kalphite King quest, you can find many articles in wikia or runescape community. If you have trained your runescape account with combat level higher than 120, you should be confident to kill it fast and get the rich rewards.
|Queen Black Dragon|
However, after the recent revolution of Combat, her combat level is the same as Nex’s, therefore the Queen Black Dragon is now the second toughest monster to tackle. Even though, perhaps, unlike killing Kalphite King, it is not so necessary to form a group to tackle her, it requires quick reflexes and fairly high combat level to defeat her. If you can train combat level high instantly and kill monster fast and more, you can sell rs accounts to earn a decent amount of rs gold or money. In the quest, the most difficulty challenge is to slay her.
When you succeed defeating the Queen Black Dragon, you can get rich rewards in return without questions. The rewards contain exp, rs gold, weapons so that you can kill almost every monster in Runescape.
If you are searching for players to kill the Kalphite King, you can be a leader of a team so you can train combat level fast in short time. If not, you are more likely to be chosen as one of the member to form a group to kill the toughest monster! But I have to remind that both of these strong and tough monsters are available for paid Runescape account.