How do you get obsidian cloak in adventure quest

you may not no this but obsidian cloak doenst exist on aq. the obsidian cloak is from runescape another mmo. the word obsidian comes from runescape and it haslots of other items that are obsidian.

Contrary to what the person above says there is such a thing as a n obsidian cloak for adventure quest. You can go to obsidia's lair and it is the guardians version of the necromancers cloak. P.S it is also in runescape for (last I checked) 250,000 gps along with other obsidian items such as the tatz items