Weakness Weak causes the target to deal less damage with both melee and projectile attacks. The base damage on your attacks is reduced by 66%.

Source: Weakness

Elementalist - Air Magic

Enervating Charge Target foe is struck for 5..41 lightning damage and suffers from Weakness for 5..17 seconds. This Spell has 25% armor penetration.

Necromancer - Curses

	Enfeeble Target suffers from Weakness for 5..17 seconds.
	Enfeebling Blood Sacrifice 10% max Health. Target foe and all adjacent foes suffer from Weakness for 5..17 seconds.
	Enfeebling Touch Target touched foe loses 5..17 Health and suffers from Weakness for 5..41 seconds.

Necromancer - Death Magic

Virulence If target foe was already suffering from a Condition, that foe suffers from disease, Poison and Weakness for 3..13 seconds.

Warrior - Axe Mastery

Axe Twist If this attack hits a foe suffering from a Deep Wound, you strike for 1..16 more damage and that foe suffers from Weakness for 20 seconds.

Warrior - Hammer Mastery

	Devastating Hammer If Devastating Hammer hits, your target is knocked down and suffers from Weakness for 5..17 seconds.
	Forceful Blow If Forceful Blow hits, you strike for +10..34 damage. and your target is Weakened for 5..17 seconds. If it is "evaded" you are knocked down
	Heavy Blow Lose all adrenaline. If this attack hits a foe suffering from Weakness, that foe is knocked down and you strike for +1..24 damage.
	Staggering Blow If this hammer blow hits, your target will suffer from Weakness for 5..17 seconds.

Warrior - Tactics

Drunken Blow If this attack hits, you strike for +10..34 damage, and your target suffers from one of the following conditions: Deep Wound (for 20 seconds), Weakness (for 20 seconds), Bleeding (for 25 seconds), or Crippled (for 15 seconds). After making a Drunken Blow, you are knocked down.

Removal: Weakness

Elementalist - Earth Magic

Crystal Wave Foes adjacent to you are struck for 10..82 damage but are cured of any negative Conditions. This Spell ignores armor and magic resistance.

Monk - Divine Favor

Contemplation of Purity Lose all Enchantments. For each one lost, you gain 6..65 Health, lose one Hex, and lose one Condition.

Monk - Monk other

	Martyr Transfer all Conditions and their remaining durations from your party members to you.
	Purge Conditions Remove all Conditions (Poison, Disease, Blindness, Dazed, Bleeding, Crippled, and Deep Wound) from target ally.
	Purge Signet Remove all Hexes and Conditions from target ally. You lose 10 Energy for each Hex and each Condition removed.

Monk - Protection Prayers

	Draw Conditions All negative Conditions are transferred from target other ally to yourself. For each Condition acquired, you gain 6..22 Health.
	Mend Ailment Remove one Condition (Poison, Disease, Blindness, Dazed, Bleeding, Crippled, or Deep Wound) from target ally. That ally is healed for 5..57 points for each remaining Condition.
	Mend Condition Remove one Condition (Poison, Disease, Blindness, Dazed, Bleeding, Crippled, or Deep Wound) from target other ally. If a Condition is removed, that ally is healed for 5..57 points.
	Restore Condition Remove all Conditions (Poison, disease, Blindness, dazed, bleed, Crippled, and Deep Wound) from target other ally. That ally is healed 10..58 for each Condition removed.

Necromancer - Curses

	Plague Sending Sacrifice 10% max Health. Transfer one negative Condition and its remaining duration from yourself to target foe and all adjacent foes.
	Plague Signet Transfer all negative Conditions and their remaining durations from yourself to target foe. This is an elite skill. (50% failure chance with Curses 4 or less.)

Necromancer - Death Magic

	Infuse Condition For 15..51 seconds, whenever you receive a Condition, that Condition is transferred to your closest minion instead.
	Verata's Sacrifice Sacrifice 15% max Health. For 5..9 seconds, all of your undead allies gain +10 Health regeneration. All Conditions are removed from those allies and transferred to you. This Spell instantly recharges if you control 3 or fewer minions.

Necromancer - Necromancer Other

Plague Touch Transfer a negative Condition and its remaining duration from yourself to target touched foe.