Biotic warrior with a sword, high mobility, and both damage and defense powers.
The Asari Duelist is a former Justicar. She keeps her distance from the other team members and harbors doubts about whether she made the right choice in coming to a new galaxy.
This class seems built around the Asari Sword, a powerful melee weapon that provides a brief teleport to increase its effective range and help avoid incoming gunfire. Charge should be used to get the Duelist into melee range, and a shotgun with a Shotgun MeleeMod attachment can help improve the sword's lethality.
Backlash has some utility when closing in to kill clumps of enemies with the sword, as it can interrupt their own melee attacks and frees you to stab another one.
Lance is here to provide a ranged option. If configured to use shields, pairing it with Charge with Rank 6 Bastion enables a core usage loop based on almost unlimited Lance spam, as long as there are enemies remaining to Charge at for replenishing shields.
The Duelist is a pure detonator character as she has no natural primer skills. Combo explosions must be primed by teammates, or if going solo, ammo consumables are essential.
Kett[]
Outlaw[]
Remnant[]
A melee-oriented Duelist might flail around due to the Remnant's abundance of floating units. Backlash is essential to turn their continuous damage streams back at them.