You should have an ability called sneak attack that when used puts a shroud on you (after you strike with it) that allows ember strike and ranger's blade to become useable but only when fighting from the side or behind. So if soloing you can stealth up and use sneak attack but then the mob turns around which nullifies the use of the 2 sneak attacks, so I always use cheap shot,sneak attack then one of the 2. Cheap shot stuns the mob to you can position yourself. Sometimes the mob will still turn with you which can be frustrating.
If your in a group just be in the right position and sneak attack all you want.
As for the quests question. Just open up your journal and look at the bottom tabs and you'll see the one titled completed.
Good Luck and have fun.
*edited for spelling*
Edited, Jul 11th 2012 2:57am by ChiefsClassik
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