I dont not have enough items yet to use either drain phyche or psi bolt yet. as i continue to gather items i will update the build

Rotation

 - Applies Dot layer for 8 seconds and Terrify for 2 seconds 

 - Applies Vulnerability and reduces cooldown on your signature ability

 - you have 3 charges use often it hits anyone behind your target

 - Applies weaken the buff really doesnt matter it is better for the melee build

 - after you use show off this will get you out of melee range

 - Applies dot layer for 10 seconds

 - This is your signature use when off cooldown it hits like a dump truck / Restore health and spirit