Skyrim's new DLC Dawnguard adds in not only the Vampire goodness we expected, but also a few new shouts for your Dragonborn to use. For the most part, they're pretty straightforward, closely linked to the questline, but some words are a little tricky. Use this handy guide to go out and learn a few new Words.
Drain Vitality - This new shout will drain Health, Magicka. and Stamina from your target. You will find two words for it in areas that are directly related to the Dawnguard quest line, with the final one in Skyrim itself.
For the first Word, you are likely to find it located in Dimhollow Crypt, which is quest related.
The second Word is tied to a quest area located in the Forgotten Vale, on an island in a Frozen Lake - be prepared for a fight two named dragons for this one though.
The final Word is located at Arcwind Point, which is to the south of Ivarstead and east of Riften.
- Dawnguard Guide: FAQ - Everything You Need To Know
Durnehviir - After you've battled this undead Dragon in the Soul Cairn, you have a conversation with him. He'll teach you a shout that allows you to call him to your aid in Tamriel. By doing so, you'll also learn the third new Shout through Durnehviir.
Soul Tear - In order to learn the final new shout, you have to first go through the Quest "Beyond Death" which takes you to the Soul Cairn. At the end of that quest, you'll fight Durnehviir, who will teach you his Summon shout. Once you've made it back to Skyrim, you need to summon him three times. Each time he appears, he teaches you a new Word of Power in the Soul Tear shout.
- Dawnguard Guide: Achievements and Trophies Guide
In order to actually use the shout, you need all three words unlocked. Go hunt some more Dragons for their souls to unlock them!
Once you learn all three Words of Soul Tear you'll get an achievement as well.