Get a ditto and find a wild pokemon that has two or more attacks. Use Transform on the pokemon. Then, go to "Fight" and use Select to switch the top two attacks. To do this, just press select on the second attack, move up one and then press select again. Now, run away, and ditto will no longer have transform, but a nameless attack with type CoolTrainer! Unfortunately, this attack perpetually has 0 PP. This part has not yet been tested - but if you use a PP Up on the attack, it will act glitchy and earn PP. Then use an Elixir and you'll be able to use the attack. It almost always misses, but if it hits, 2 flashes of light will appear and then deal damage.
Submitted by: Glitched Symbols