We got the right to put 1 Crystal on our Outfit ( Body so far ) so How to do it ? 

   Items Needed To Add Crystal Slot To Outfit

  You need Black Spirit's Claw, Equipment Tailoring Coupon and The Crystal that you want to add to your outfit ( +2 Movement Speed, +1 Critical Hit or +1 Attack & Casting Speed ).

   Now let's see how to get The Items mentioned above one by one.

   Starting with Black Spirit's Claw : for that you need 3 pieces of Black Spirit's Claw ( Buy them from the Central Market or if you have the motivation to hunt them down just go for it but I can tell it takes a lot of time to get one not to mention 3 of them, well, unless you want to try so why not ? ) and arrange them in horizontal way as shown on the picture below 

To get 

   The next Item is Equipment Tailoring Coupon : You can purchase this Item for 400 Pearls ( F3 > Function > Other ), or buy it from the Central Market 

   The last Item needed is The Crystal : Alright, for this one it depends on your Chosen Crystal which means you have to check out what Suit/ Armor or Cloth to get your Crystal from ( +2 Speed or +1 Crit or +1 Attack & Casting Speed ).

   I'm going to mention some here which could be helpful to you, for example :

- Calpheon Noble and Serendian Formal Suit give +2 Movement Speed.

- Ahon Kirus and Delphe Knight Armors as well as Serendian Smith Garb and Florin Herb Gatherer Clothes give +1 Critical Hit.

- Shroud Knight, Jarette’s, Black Leopard Armor and Jordine’s Casual give +1 Attack & Casting Speed.

   Well to make the searching goes smoothly, I have something for you : for examlpe I was looking for +2 Movement Speed so I thought of Calpheon Noble, I opened the map and clicked on the Calpheon City then went for '' Costume Mill '' as you can see below 

   I had to get level 2 to make my Calpheon Noble, after you get the materials for your suit, make sure to put them on the storage and click on '' Manage Crafting '' to go through the processing also you need a worker to make the suit so make sure to get one in the same city. ( by the way, you can shop some suits from the Central Market so check it out, if the suit needed is there just purchase it, if not, you can make one ).

  After you get your Suit made from the storage, click on your Equipment Tailoring Coupon then put the suit to convert it into a Pearl one, after that head to Processing L > Heating and heat the suit that you made to get your Crystal. In my case I got this one as I mentioned before

   Now, to add the Crystal to your Outfit ( body ), press on Black Spirit's Claw, it will show the enhancement section ( don't panic ), put your outfit and press Enhance ( no worries, it works 100% and without touching your failstacks if you have already some so it's safe ).

  And Congratulations, now you can click on the crystal and add it to your outfit just like this 

   Well, that's all about this guide, I hope you find it useful to you and if you have any question, don't hesitate to contact me, my Family Name is Dustan from Turkey & MENA Server.

   Enjoy your time !