Conduct an Overload Attack

The first step should be to cut off their access to a ground, if possible. Once they are cut off from grounding, your attack will be more effective, and it will be harder for them to counter it. If you can, also shield them to contain the energy. Put in a link, and dump as much energy as quickly as possible into their system.

If they have a high speed and capacity, you may want to alternate the speed...fast, slow, fast, slower, faster, etc....change as rapidly as possible, and dump as much energy with the "fast" cycles as you can. This attack causes a "stun" effect...mental confusion, lassitude, rise in body temperature, and other signs of distress.

Some folks use a "tuned shield", or a filter. This type of shield is designed to keep out certain types of patterns and/or frequencies. Overload attacks are particularly effective against this type of shielding, as you can tune your attack to match something that is allowed through their filter. I have witnessed first hand someone using "pure white light" energy to conduct a successful overload attack.

How to defend against an overload attack

A very strong shield can ward off an overload attack, but if your shield is compromised, or absorbs rather than deflects energy, then you may need to resort to other measures. The primary key to successfully defending against this attack is to recognize EARLY, before too much damage is done. Once mental confusion sets in, it is much harder to deal with it.

The first thing you must do is establish an emergency ground. If you cannot do it directly, then physically grab something metal which is grounded, and attempt to pour energy into it. If you can equalize your grounding flow with their input, then you can concentrate on breaking their link, and deflecting the energy. It's imperitive to get up a good deflective shield. If you have the ground going, and the mental resources to do it, you can also push energy back and attempt to overpower them that way. If you can harness their attack, and capture it, you can use the energy to conduct a wide variety of counter-attacks.