Mewtwo Ex

<p><p><p><p><p><p>I'm just wondering... because it's this event Mewtwo that has Electro Ball, something it does not learn naturally. I'm sure its implications in battle is to strike Kyogre and Ho-oh super effectively, but Mewtwo already has a big load of trouble fighting those two. Psystrike however does a big number to both, 2HKOing them, so I'm not sure if it is redundant or something actually useful...</p></p></p></p></p></p>