MeMo
MeMo provides 
Healing SeedHealing SeedMonk / Healing Prayers / Enchantment SpellE 10Cast 2Recharge 25For 10 seconds, whenever target other ally takes damage, that ally and all adjacent allies gain 3..30 Health.{target}, mesmer damage, and support for derv hill.
Build
EmpathyMesmer / Domination Magic / Hex SpellE 10Cast 2Recharge 10For 5..15 seconds, whenever target foe attacks, that foe takes 10..55 damage and target foe deals 1..15 less damage with attacks.
Visions of RegretElite / Mesmer / Domination Magic / Hex SpellE 10Cast 2Recharge 20For 10 seconds, target foe and adjacent foes take 15..45 damage whenever they use a skill and 5..50 damage if not under the effects of another Mesmer hex.
Unnatural SignetMesmer / Domination Magic / SignetCast 1Recharge 10Target foe takes 15..75 damage. If that foe is under the effects of a hex or enchantment, foes adjacent to your target take 5..50 damage.
OverloadMesmer / Domination Magic / Hex SpellE 5Cast 0.25Recharge 5For 5 seconds, target foe suffers -1..3 Health degeneration. If target foe is using a skill, then Overload deals 15..75 damage to that foe and all adjacent foes.
Shatter DelusionsMesmer / Domination Magic / SpellE 5Cast 0.25Recharge 6Remove one Mesmer Hex from target foe. If a Hex was removed, that foe and all adjacent foes take 15..75 damage.
MistrustMesmer / Domination Magic / Hex SpellE 10Cast 2Recharge 12For 6 seconds, the next spell that target foe casts on one of your allies fails and deals 10..100 damage to that foe and all nearby foes.Healing SeedMonk / Healing Prayers / Enchantment SpellE 10Cast 2Recharge 25For 10 seconds, whenever target other ally takes damage, that ally and all adjacent allies gain 3..30 Health.{target}
Life BondMonk / Protection Prayers / Enchantment SpellE 10Cast 2While you maintain this Enchantment, whenever target other ally takes damage from an attack, half the damage is redirected to you. The damage you receive this way is reduced by 3..30.{target}OQNEAqwN+ioButpL4bw0LRxDGear
Use the shared Mesmer gear page as the baseline.
Notes
Life BondLife BondMonk / Protection Prayers / Enchantment SpellE 10Cast 2While you maintain this Enchantment, whenever target other ally takes damage from an attack, half the damage is redirected to you. The damage you receive this way is reduced by 3..30.{target} is only here to provide infinite energy between Foundry room 3 and Veil. Cast it on Emo, and Emo places 
Balthazar's SpiritBalthazar's SpiritMonk / Smiting Prayers / Enchantment SpellE 10Cast 2While you maintain this Enchantment, target ally gains adrenaline and Energy after taking damage. (The amount of adrenaline gained increases depending on your rank in Smiting Prayers.){target} on you.
Gloom
- Wait with Necro before triggering the mobs at the start.
- Go with Emo in Gloom to cap the rift after wave 8.
- Help on Darknesses wave 3.
Foundry
- Use Healing SeedHealing SeedMonk / Healing Prayers / Enchantment SpellE 10Cast 2Recharge 25For 10 seconds, whenever target other ally takes damage, that ally and all adjacent allies gain 3..30 Health.{target} on Emo in Foundry room 4 wave 2.
- Ping for snakes until General is free, then leave it to Emo.
- Try to seed TK before the Black Beast pull.
City
- Place Visions of RegretVisions of RegretElite / Mesmer / Domination Magic / Hex SpellE 10Cast 2Recharge 20For 10 seconds, target foe and adjacent foes take 15..45 damage whenever they use a skill and 5..50 damage if not under the effects of another Mesmer hex. on the main ball before hitting off-damage.
- Help with everything on the wall.
Veil
- Seed during 360: Emo during melee waves, tank otherwise.
- Life BondLife BondMonk / Protection Prayers / Enchantment SpellE 10Cast 2While you maintain this Enchantment, whenever target other ally takes damage from an attack, half the damage is redirected to you. The damage you receive this way is reduced by 3..30.{target} TK before the derv hill pull.
- Go with the tank to kill Monk Lord.
- Join back your team at Mesmer Lord.
- Seed Emo for 3-3.
- Kill the closest tendril during the first 3-3 spike and the middle tendril during the second one.