if your taking about a vestment cloak you have to do level 2 clue scrolls or you can buy them from the ge, from 1 mil to 1.7 mil gp. However there is also castle war cloak which you get from the castle war mini game, fremennik cloaks bought from ge or rellika, ghostly cloak from the mini game after you complete desert treasure, ham cloaks which can be stolen from H.A.M members or bought from ge, witch and warlock cloak which was obtained from a Halloween event, webbed cloak which was also another Halloween event reward, mourner cloak which can be obtained by killing a lvl 11 mourner on the path to Prifiddinas and finally the ardougen cloak which is obtained by doing the ardougen achievement dairy. I hope that answers your question however you can always just Google it.
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
You can get another cloak by going to Diagno's Toy shop and asking him for another.
the grand exchange on runescape
You can buy membership at stores like Target or at the Runescape website.
Only buy runescape membership from their site, look on homepage.
Off of the RuneScape website.
Online, through the RuneScape website.
eBay
Buy it from nulgath for about 550k gold
buy a saradomin sword
We can buy it in grand exchange.
You can get a black cloak at any local Halloween store such as Spirit or Party r Us depending on where you live!