Team Tele Ele
So, how about a modular build that can clear and complete City of Torc'qua with a minimum of 3 players but which can be expanded up to 8 to make things faster?
Everyone runs one of 2 builds, making finding a pug easier, and no one needs a monk to heal?
Sounds too good to be true? Nah, not really

The builds.
Tele ele - Elementalist/Assassin
Energy Storage: 6 (3+3) [variable, superior rune could be removed for safety in places with 2 dervish]
Fire Magic: 16 (12+1+3)
Shadow Arts: 12
Shadow of Haste (Shadow Arts)
For 34 seconds you move 15% faster than normal. When Shadow of Haste ends, you return to the location where you activated this skill.
Energy:5 Cast:0 Recharge:30
Shadow Form [Elite] (Shadow Arts)
For 17 seconds, all hostile spells that target you fail and all attacks against you miss. When Shadow Form ends, lose all but 41 health.
Energy:5 Cast:1 Recharge:60
Death's Charge (Shadow Arts)
Shadow Step to target foe. If that foe has more Health than you, you are healed for 112.
Energy:5 Cast:0.25 Recharge:45
Meteor Shower (Fire Magic)
Create a Meteor Shower at target foe's location. For 9 seconds, foes adjacent to that location are struck for 119 fire damage and knocked down every 3 seconds. This Spell causes Exhaustion.
Energy:25 Cast:5 Recharge:60
Lava Font (Fire Magic)
For 5 seconds, foes adjacent to the location where this Spell was cast are struck for 53 fire damage
Energy:10 Cast:2 Recharge:4
Bed of Coals (Fire Magic)
Create a Bed of Coals at your location. For 10 seconds, foes standing still near this location are struck for 31 fire damage each second. Any foe knocked down on the Bed of Coals is set on fire for 7 seconds.
Energy:15 Cast:1 Recharge:30
Inferno (Fire Magic)
All adjacent foes are struck for 142 fire damage.
Energy:10 Cast:0.75 Recharge:10
Dark Escape (Shadow Arts)
For 13 seconds, you move 25% faster and take half damage. Dark Escape ends if you successfully hit with an attack.
Energy:5 Cast:0 Recharge:30
Build code: Code: