Witch
ElementalistThe build revoles around 
Elementalist and the buffed 
Exsanguinate , 
Reap. As other source of damage 
Corrupting Fever This skills is refered as Phys DoTs. It deals physical damage over time.
As always in my build guides have Notes section in the PoB that contains usefull inforamation about the build, progression and much more!
If you have any question while playing this build you can ask me on Twitch: https://www.twitch.tv/peuget2
IMPORTANT
You need level in off hand Exsanguite and Reap (unless you getting Vaal Reap) when you can get it.
When to swap?
Only swap when you completed the second lab (Level 55)
Can i use early Exanguinate?
Nope, it has slow cast time and you cant sustain the life cost.
Early damage sources (act 1-3)
Did not need to complete the campaing just suggestions
1. Flat damage or craft flat damage to spells will be very good
2. 
Axiom Perpetuum or 
Lifesprig unique weapon
3. +1 to fire / lightning spells. KEEP +1 TO PHYS SPELL FOR LATER USE
4. 
Tasalio's Sign its good alternative
5. 
Cold Iron Point point dagger after you swap is insane.
Low level wand "trick"
You can start a new character and kill Hillock then just buy all the ILVL 4 wand with spell damage implicits and you can spam spell damage essence / alt spam on it.
At this level the you have very high chance to hit +1 to phys spells.
How to improve your gear in acts?
Gold gamble. Easily can get mana/life gear and four link early!
Also if you need a better wand
Bases to look for:
- Evasion/energy shield base if you have enough Dexterity.
- If you dont just pure energy shield base
