Moolinda wu gave you that quest because she thought you already have access to Marleybone. So all you could do is work on Krokotopia and gain access to Marleybone. OR you could ask a friend that HAS access to Marleybone tell them to go there and then port to them! Lucas Drakebloom Level 33 Oni slayer Ice wizard "companionship is how we survive in the spiral"
don`t worry about it, you will get acess to mb and you will find that quest is in the second section of mb. you will still be able to get your regular card when you reach the level you need for it, but the quest card your after requires you to beat the same guy 1v1 9 times in a row so be ready.