Support Rogue Build for COOP

My Basic Build so far for Rogue
What is everyone’s opinion?

Forceful Arrow + Enhanced + Fundamental
Guaranteed Vulnerable + guaranteed knockback of non elites

Rapid Fire + Enhanced + Improved
Anytime you fire Rapidfire on an enemy you regain 15 Mana
So you essentially gain mana for doing burst damage

Caltrops + Enhanced Caltrops
Slows down a large group of enemies + increases damage from all sources

Poison Trap + Enhanced + Countering
Poison Trap knocks down enemies + Caltrops which slows them down so they stay in poison longer + bonus damage for staying in caltrops + Resets Imbuement

Shadow Imbuement+ Enhanced + Mixed
AoE explosion when enemies grouped in Caltrops quickly kills non elites with an additional 23% increase in damage from all sources.

ShadowClone + Unstoppable
Gives you a get out of jail free card with unstoppable + bonus damage with more AoE Spam.

===============

Basic Idea is
Use Forceful arrow to help group up targets by pushing enemies away until you got a nice pile using Burst every 3rd shot
Then Poison + Caltrops + Imbue to kill the group.

For bosses
You use Caltrops → Imbue → Forceful
Forceful doesn’t trigger imbue. So it is saved
After 3rd shot boss becomes vulnerable

Then double Rapid fire.
Then use Poison traps to reset cooldown of imbue and making sure constant DoT is happening to boss.

=====
Summary
It won’t have high burst potential like twisting daggers
But it gives your team a big bonus support buffs