I think I'd rather see it a permanent that you activate to shatter into 2-3 shards. To prevent targeting problems with SoR, the shards would likely have to go to your hand as well, to be played from there. For simplicity's sake...why not make it unupped generates 2 shards, and upped 3? Remember that you can have multiple copies of this, and it'll get around the current limitations of the original shards as well.