Death Knight Talent Build: Unholy PvP DPS

Starting with the Frost Tree you take some armor enhancement, 30% increased frost damage, and pick up Lichborne so you can become immune to charm, fear, sleep, and take 25% less melee hits every 3 minutes. You also grab annihilation from this tree so Obliterate won't consume the diseases on targets. Annihilation can be exchanged for Wandering Plague in the Unholy Tree if you are planning on doing Battlegrounds and AoEing large groups of people.

Then we move into the Unholy Tree where the real ass whooping takes places. In this tree you will increase disease damage, critical strikes, AoE capability, and pet capability. You may want to leave Frost Aura on for extra DPS.

Basically, people will want to run away from you when you enter PvP but with unholy command they won't get too far.