There are now enough good dinosaurs in Magic that you can easily run dinosaurs as a typal group, and you have a few commanders to choose from to do so
This leads us to another rule: 4
Obsessive Skinner Dispensing +1/+1 counters each turn can be surprisingly powerful, especially once you chuck in a couple of cards like Pir, Imaginative Rascal or Shalai and Hallar to get more out of the upkeep trigger
Rogues are often related mechanically to mill, so you can have an aggressive/tempo build with rogues attacking every turn and have mill as a subproduct
There are many expensive Dimir cards in Gatecrash and although your opponents could be blown away by drawing Gruul cards, they may also be playing Boros
Maybe I need to consider setting up Discord matches, at least that way I can excuse the ill-advised spending Im thinking about doing right now.