What I did is made a 40 card rainbow (now I use my own 33 card one, but...), then a speed poison, then a fire/light god farmer, then a light/fire flying gloriesxsodxmiracle, then a scarab, and now I'm working on a time/earth/aether deck.
So, basically, I would go speed poison, too.
Or, if you want a really good pvp deck, make a pillar denial deck.