In taking on any practices of the practices of the ancient Sumerians necromancy, you understand that you are preforming energies that would be considered "Black" or "Dark". Also in doing so the actions you take, and what your eyes are opened to from here in are not, in any way, my responsibility. Should any of the following happen, I wish not to here complaints or flaming from anyone who does not approach me in a decent fashion. The possible outcomes of you using any of these ancient magics may or may not include: A change in aura, Attraction of shadow demons, Horrifying nightmares, Whispers in ancient tones, Unwanted knowledge of arcane arts.
The Energy Tap
The general idea of necromantic practices is to release oneself of unessential items, words, and possessions. So the process for preform most spells require nothing more then mental stability.
To start an energy tap you will need two people. Yourself, and a willing participant. Range, time, nor else of that jumble matters. However, if you are trying this for the first time, I highly suggest the person be in close range for the best results.
Start out by calming yourself and your mind. This can be done a number of ways, whatever you feel most comfortable with. Next close your eyes and picture yourself in front of a door. As you stand behind this door, you are swimming in a pool of your own energy.
The next step is to have your willing participant in a calm state of mind as well. Have them close their eyes. They should picture themselves walking down a path, the length does not matter, but the more vivid the participant can see themselves doing this, the more powerful it will be. As they continue down this path they will see your door.
As they come to the end of this path, and they are standing in front of your door, both you and the participant should see you opening that door. At this point you yourself will feel a lot lighter, this is natural. The participant on the other hand will fell a wave of wash over them, as if a cooling wash of water were to splash them.
At this point, there is now a one sided connection between the two of you. Your participant is now able to draw on your energy at any time they choose. All they need to do is close their eyes and picture themselves opening the door from that point forward. However you can not access their energy, unless you preform this both ways. (I.e. You both open the door for each other.)