First Thing you need is Proxy Cap.I wont upload it because it takes too long and i cant upload for mpgh.
I will give u key here.
Name: Peter Raheli
Key: bb6d993e5ba941a4e8r65frd11
Then you need VMware! Google and Youtube are your best friends! Set it up with an OS(Operating System) Like This

You need ccproxy inside of VMware along with WPE and SPT Skills.
Then you need WPE its down there.
Also The All SPT Skills for the skills hacks for dfo.
Now we get to the actual thing!
Once you have everything set up, Set up Proxy Cap Like This ( Click Proxies)

Then Set Up Proxy Cap Rules Like This( Keep Proxy Cap Disabled.)

Open Vmware And Set Up CCProxy Account Like This(Notice it says PERMIT ONLY)

Now Enable ProxyCap outside of VMware.
Now for the actual part where u start hacking/Packet Editing

Okay Open WPE Inside of VMware and Target Program to CC Proxy Like this.

Click on Send below the box with filter in it. Then Click on the open Symbol and look for the class you want to use.

Now you should have a list of skills of your class. In my case Slayer class.
Start Dungeon Fighter and login to an account.
Once you start out in Seria's room, Press play on WPE and walk outside of seria's room then press Stop. You should get a couple packets as shown but it probably wont be the same.

Now look for packets the size of 20 ( below the size label)
It probably wont be next to eachother. Look for all the 20's and you have
to look at the codes in blue under the souce and destination tab to see if the 20s are the same. MAKE SURE THEY ARE THE SAME like this.

Then right click the second packet and click the third option(Set Send List with this socket id)
Now Click on a skill and press play! To Edit What level Skill is and Where The skill is placed double click the skill and click on the images in the SPT folder for help

Then once your Finished with that part Click the check box next to the skill and click the play above the box with the skills and then click play again.
Then Bam Finished

I didnt have cubes atm on this account so it was gray.
Virus Scans All SPT Skills
HAHAHAHAHAHAHAHAHAHAHAHA
Virus Scans WPE
I swear it isnt a real virus. i use it myself x.x
ooooooohhhhhhh goooooooddddddd
Credits
Credits to @
gamedfoKiller for the hack
I made this tutorial, i typed it up from 4-5 am.