Since it seems conditions and therefore removal of such conditions will be important, I've compiled a list of each professions conditional removal ability.
Elementalist
Skills Healing Wave(offhand dagger water attunement) - Heal yourself and nearby allies, removing a condition. 40sec CD Magnetic Wave(offhand focus earth attunement) - Damage foes, remove conditions, and reflect projectiles with a magnetic surge. 25sec CD Healing Rain(staff water attunement) - Call down a healing rain on target area, granting regeneration to allies and also removes conditions. 45sec CD Windborne Speed(staff air attunement) - You and nearby allies gain swiftness, while removing cripple, immobilize, and chill. 20sec CD Pheonix (mainhand scepter fire attunement) - Release a fiery phoenix that first attacks foes in a line, then explodes and returns to you, removing conditions and granting you Vigor. 15sec CD Ether Renewal(healing skill) - Heal yourself and lose a condition with every pulse. 15sec CD Cleansing Fire(utility skill) - Remove all conditions and break out of stun, while burning foes. 30sec CD Signet of Water(utility skill) - Passive: Removes a condition every three seconds.
Traits None known at this time.
Warrior
Skills Charge(offhand warhorn) - Grant swiftness to yourself and allies, while removing chill, cripple, and immobilize. 20sec CD Mending(utility skill) - Heal yourself and remove a condition. 20sec CD Signet of Stamina(utility skill) - Active: Removes all conditions. 45sec CD Shake it Off(utility skill) - Remove a condition from yourself and nearby allies. It can also break stuns. (Area of effect: 100 feet) 25sec CD
Traits None known at this time.
Ranger
Skills Healing Spring(healing skill) - Create a healing spring that also removes conditions from you and your allies. 30sec CD Signet of Renewal(utility skill) - Passive: Removes a condition every ten seconds. Active: Your pet pulls all conditions from nearby allies to itself. 25sec CD Spirit of Nature(elite skill) - Summon a spirit that heals allies. Command the spirit to revive and remove conditions from nearby allies. 3min CD
Traits Empathic Bond(major trait wilderness survival) - Your pet periodically takes conditions from you.
Necromancer
Skills Putrid Mark(staff) - Inscribe a mark that transfers conditions from allies to foes when triggered by a foe. 25sec CD Deathly Swarm(mainhand scepter) - Unleash an insect swarm on multiple foes. Remove three of your conditions on a successful attack. 15sec CD Consume Conditions(healing skill) - Feast on your conditions, gaining health for each one consumed. 25sec CD Plague Signet(utility skill) - Passive: Transfers conditions from nearby allies to yourself. Well of Power(utility skill) - Transform conditions on allies into boons every two seconds. 30sec CD
Traits None known at this time
Guardian
Skills Virtue of Resolve(virtue) - Regenerate health. Activate: Remove conditions and regenerate nearby allies. 40sec CD Purge Conditions(hammer) - Purge up to five conditions from nearby allies and burn nearby foes. 18sec CD Martyr(Staff) - Draw conditions from nearby allies to yourself. Gain fury, might, protection, regeneration, swiftness, and vigor. 50sec CD Ray of Judgement(offhand focus) - Pass a ray over foes and allies. Foes are damaged and blinded. Allies gain regeneration and lose 1 condition. 25sec CD Cleansing Flame(offhand torch) - Throw a cone of celestial fire in front of you, scorching foes while removing conditions from allies. 20sec CD Signet of Resolve(healing skill) - Passive: Removes a condition every 10 seconds. Smite Condition(utility skill) - Remove a condition and damage nearby foes. Damage is doubled if a condition is removed. Can be used while stunned. 20sec CD Contemplation of Purity(utility skill) - Remove all conditions from yourself and turn them into boons. 60sec CD Bow of Truth(utility skill) - Summon an arcane bow to remove conditions from you and your allies. 60sec CD
Traits Final Restoration(major trait zeal) - Smite conditions when health reaches 25%. Pure of Voice(major trait honor) - Shouts remove conditions. Purity of Resolve(major trait virtues) - Resolve removes two conditions instead of one.
Thief
Skills None known at this time.
Traits Shadow's Embrace(major trait shadow arts) - Remove one condition every three seconds while in stealth.
Engineer
Skills Elixir Spray(elixir gun) - Spray elixir fumes in a cone pattern poisoning enemies and removing conditions from allies. 10sec CD Drop Antidote(Med Kit) - Drop a vial of antidote that removes conditions. 10sec CD Elixir C(utility skill) - Drink Elixir C, converting all conditions into random boons. 60sec CD Elixir R(utility skill) - Drink Elixir R, recovering from Stun and losing all conditions. 45sec CD
Traits Cleaning Formula 409(major trait alchemy) - Throwing or consuming elixirs removes conditions from those effected. Transmute(minor master alchemy) - 3% chance to convert incoming conditions into boons.
Mesmer
Skills Null Field(utility skill) - Create a field of energy for 7 seconds that removes all boons from enemies, and removes all conditions from allies. 45sec CD Mantra of Resolve(utility skill) - Meditate, charging a spell that will remove all of your conditions. 30sec CD
Proximo Admin replied
719 weeks ago