Damnit Alu, you're so good and helpful in TCG, why can't you be like that for Pokemon
Anyways, Solarbeam is mainly used on Sunnybeamers (Sunny Day+Solarbeam), so that's a no.
Sandstorm will literally kill your entire team (since it'll affect all your Pokemon and it lasts 5 turns), so that also is a no.
I'd say stick with Shadow Ball as one of your main attacks. They all get STAB from it and with Swords Dance, it'll leave a pretty big dent on most Pokemon.
Oh and one last thing:
Now THAT'S disturbing (moreso than me orgasming at getting a Fiend structure deck Blade)