Play as many cards as you can, and your foes often have one or two instants they can cast as well you invariably come out ahead in card advantage and quality
I already talked about the oft-forgotten Emerald Ink Color seeing a massive increase in play, and that is just the tip of the iceberg in old strategies that get updated with new cards
Outside-the-box cards: Guiltfeeder, Bonehoard Xenagos, God of Revels I guess revels really means battles, because thats what Xenagos does
If you play a Thalia, Guardian of Thraben to slow down your opponents, then you can also include a Pearl Medallion to offset this effect for yourself
The Verdict: Quick and Easy Built from Scratch is a great introduction to Commander
Its very simple in terms of gameplay but also incredibly effective at clearing out the opponents cards