Hello,
I am very new to grim dawn and started with deathknight + necromancer. So far at level 75 it feels super easy but not sure how it will be in end game.
I am using 2 handed physical build with skill- Forcewave.
Devotions I pretty much put by myself.
What is the best items for end game I have no idea.
Can someone guide me to the proper build with items, skills, devotions?
Thanks
Welcome to the game and to the forum. 
There are several Death Knight builds in the compendium, including a beginner one in the Beginners section.
Thank you
Thats alot of builds to try