What should you bring to kill the king black dragon in runescape?

I would strongly recommend ( from my own experience ):

1 Ranged Potion

1 Anti-DragonFire Potions

1 Super Anti-Poisons

Anti Dragonbreath Shield/Dragonfire shield

Rune Crossbow

Black Dragonhide set/Karils set/Armadyl set Or your choice of armour

Ruby(e) Bolts or Diamond(e) and if you bring Ruby(e) bring broad bolts to finish it off unless you want wasted special attack from the Ruby(e)

Fury Amulet, Glory, or any amulet.

Food, tuna Potatoes or better. Heals 22hp+

Skill cape - Fire cape - Obsidian Cape God cape, or whilst ranging, Ava's Attractor/Accumilator. A 1-click teleport Example a Tele-Tab