An entertaining deck that tends to be a little slow, but very strong in the mid-game.  Your strategy is to snipe as often as you can.  Shoot down your opponent's creatures to keep yourself alive in the early game.  Caltrops and Ensnaring Bridge will keep you alive while you strengthen your army of pingers.  Use Quicksilver Dagger to keep drawing and equip your Digesters with Longbows or Psionic Gifts, or Phyresis on your Prodigal Sorcerers and Hunters to keep infect damage coming in.  Intruder Alarm is critical; tap out your pingers every time it activates to kill off your opponent's creatures before they get the chance to attack, and use it on your turn for damage and draw power.  In the late game, play Nature's Revolt to turn every land into a creature, then use your pingers to pick off your opponents lands or use your Daggers to play the turn that never ends - draw creature, play creature, untap creatures and lands - ping, draw, repeat.  Argent Sphinx can also prolong your turn.  Phase him out to give yourself a free Alarm'd pinging session at the end of every turn.