I think we havn´t killed this big beast in a while!
So, here is your chance to go and smash the mighty dragon!

What to take : armour with good magic defence, antpoison, superantifire ( or shield) , pray pots, food
Actually, I didn´t notice much difference ith pre-EOC time, maybe only a little harder.
It has no special weakness, so use the style you feel comfortable with ( some guides suggest stab weapon though)
How to get there: there is an shortcut at the edge wall, so we don´t have to go through wildy.
The event should be pretty safe considering we go with a team.
A guide : http://runescape.wikia.com/wiki/King_Black_Dragon
Or this: http://www.youtube.com/watch?v=O1JKuZBrhNc