Mu Mastery

Overview

Mu Mastery is one of the Patron Power Pools.

Scirocco will instruct you on the Way of Mu, ancient techniques that give access to the lightning-based powers of the ancient race.

Power Tables

The following table shows which powers are available and at what level:

Arachnos Soldier / Arachnos Widow / Brute / Tanker

Power	Level	Effect
Mu Lightning	41	Ranged, High Damage(Energy), Foe: -Endurance
Electrifying Fences	41	Ranged (Targeted Area of Effect), Minor Damage over Time(Energy), Foe Immobilize, -Endurance
Ball Lightning	44	Ranged (Targeted Area of Effect), Moderate Damage over Time(Energy), Foe: -Endurance
Static Discharge	44	Ranged (Cone), Moderate Damage(Energy), Foe: -Endurance
Summon Striker	47	Summon Mu Striker: Ranged Moderate Damage(Energy)

Blaster

Power	Level	Effect
Static Discharge	41	Ranged (Cone), Moderate Damage(Energy), Foe: -Endurance
Charged Armor	41	Toggle: Self +Resistance(Smash, Lethal, Energy)
Summon Adept	44	Summon Mu Adept: Ranged Moderate Damage(Energy)
Electrifying Fences	44	Ranged (Targeted Area of Effect), Minor Damage over Time(Energy), Foe Immobilize, -Endurance
Electric Shackles	47	Ranged, Minor Damage(Energy), Foe: Hold, -Endurance

Controller / Dominator

Power	Level	Effect
Power Sink	41	Point Blank Area of Effect, Self +Endurance, Foe -Endurance
Charged Armor	41	Toggle: Self +Resistance(Smash, Lethal, Energy)
Ball Lightning	44	Ranged (Targeted Area of Effect), Moderate Damage over Time(Energy), Foe: -Endurance
Surge of Power	44	Self +Resistance (All -Psionics) +Resistance(Disorient, Sleep, Hold, Immobilize, Knockback, End Drain, Recovery DeBuff, Enemy Teleportation) +Endurance Recovery Attack:Special EMP Pulse
Summon Guardian	47	Summon Mu Guardian: Ranged Moderate Damage(Energy)

Corruptor / Defender

Power	Level	Effect
Power Sink	41	Point Blank Area of Effect, Self +Endurance, Foe -Endurance
Charged Armor	41	Toggle: Self +Resistance(Smash, Lethal, Energy)
Electric Shackles	44	Ranged, Minor Damage(Energy), Foe: Hold, -Endurance
Conserve Power	44	Self Endurance Discount
Summon Adept	47	Summon Mu Adept: Ranged Moderate Damage(Energy)

Mastermind

Power	Level	Effect
Static Discharge	41	Ranged (Cone), Moderate Damage(Energy), Foe: -Endurance
Charged Armor	41	Toggle: Self +Resistance(Smash, Lethal, Energy)
Electrifying Fences	44	Ranged (Targeted Area of Effect), Minor Damage over Time(Energy), Foe Immobilize, -Endurance
Thunder Strike	44	Melee(Area of Effect), High Damage(Smashing/Energy), Foe Disorient, Knockback
Electric Shackles	47	Ranged, Minor Damage(Energy), Foe: Hold, -Endurance

Scrapper / Stalker

Power	Level	Effect
Mu Bolts	41	Ranged, Moderate Damage(Energy), Foe -Endurance
Zapp	41	Sniper, Extreme Damage(Energy), Foe -Endurance
Electric Shackles	44	Ranged, Minor Damage(Energy), Foe: Hold, -Endurance
Ball Lightning	44	Ranged (Targeted Area of Effect), Moderate Damage over Time(Energy), Foe -Endurance
Summon Adept	47	Summon Mu Adept: Ranged Moderate Damage(Energy)

Powers

The following are powers in the Mu Mastery powerset.

Ball Lightning

Hurls a highly charged ball of Mu lightning that explodes on contact. Ball Lightning deals good damage in an area of effect, and drains some Endurance from each target it hits. You must have one other Mu Mastery power before selecting this power.

Damage	Moderate Damage over Time(Energy)
Recharge	Long
Minimum Level	44 (Arachnos Soldier)
	44 (Arachnos Widow)
	44 (Brute)
	44 (Controller)
	44 (Dominator)
	44 (Scrapper)
	44 (Stalker)
	44 (Tanker)
Effects	Ranged (Targeted Area of Effect) Foe: -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Range
	Increase Attack Rate
Set Categories	Targeted AoE Damage
	Endurance Modification

Charged Armor

When you toggle on this power, you are surrounded by a charged field that makes you highly resistant to Smashing, Lethal, and Energy damage.

Recharge	Fast
Minimum Level	44 (Blaster)
	44 (Controller)
	44 (Corruptor)
	44 (Defender)
	44 (Dominator)
	44 (Mastermind)
Effects	Toggle: Self +Resistance(Smashing, Lethal, Energy)
Enhancements	Reduce Endurance Cost
	Increase Attack Rate
	Enhance Damage Resistance
Set Categories	Resist Damage

Conserve Power

You can focus for a moment to Conserve your endurance. After activating this power, you expend less endurance on all other powers for a while.

Recharge	Very Long
Minimum Level	44 (Corruptor)
	44 (Defender)
Effects	Self Endurance Discount
Enhancements	Reduce Endurance Cost
	Increase Attack Rate
Set Categories	None

Electric Shackles

Electric Shackles binds a foe's limbs, leaving the target Held and helpless. The target is drained of some Endurance and some of that Endurance may be transferred back to you. You must have one other Mu Mastery power before selecting this power.

Damage	Minor Damage (Energy)
Recharge	Moderate
Minimum Level	47 (Blaster)
	44 (Corruptor)
	44 (Defender)
	47 (Mastermind)
	44 (Scrapper)
	44 (Stalker)
Effects	Ranged Foe: Hold -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Hold Duration
	Enhance Range
	Increase Attack Rate
Set Categories	Ranged Damage
	Holds
	Endurance Modification

Electrifying Fences

Electrifying Fences attempts to Immobilize a group of foes in an area. This power deals some Energy damage over time as it slowly drains some Endurance.

Damage	Minor Damage Over Time(Energy)
Recharge	Slow
Minimum Level	41 (Arachnos Soldier)
	41 (Arachnos Widow)
	44 (Blaster)
	41 (Brute)
	44 (Mastermind)
	41 (Tanker)
Effects	Ranged (Targeted Area of Effect) Foe: Immobilize -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Immobilization Duration
	Enhance Range
	Increase Attack Rate
Set Categories	Targeted AoE Damage
	Immobilize
	Endurance Modification

Mu Bolts

You can quickly hurl small bolts of Mu electricity at foes, dealing some damage and draining some Endurance. Some of this Endurance may transfer back to you. Mu Bolts deals light damage, but recharges quickly.

Damage	Moderate Damage (Energy)
Recharge	Fast
Minimum Level	41 (Scrapper)
	41 (Stalker)
Effects	Ranged Foe: -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Range
	Increase Attack Rate
Set Categories	Ranged Damage
	Endurance Modification

Mu Lightning

You can send a large blast of Mu energy at a foe, dealing heavy damage and draining some Endurance. Some of this Endurance may transfer back to you.

Damage	High Damage(Energy)
Recharge	Fast
Minimum Level	41 (Arachnos Soldier)
	41 (Arachnos Widow)
	41 (Brute)
	41 (Tanker)
Effects	Ranged Foe: -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Range
	Increase Attack Rate
Set Categories	Ranged Damage
	Endurance Modification

Power Sink

Power Sink leeches Energy directly from the bodies of all nearby foes, draining their Endurance. Each foe you draw energy from increases your Endurance. If there are no foes within range, you will not gain Endurance.

Recharge	Long
Minimum Level	41 (Controller)
	41 (Corruptor)
	41 (Defender)
	41 (Dominator)
Effects	Point Blank Area of Effect
	Self: +Endurance Foe: -Endurance
Enhancements	Enhance Endurance Modification
	Reduce Endurance Cost
	Increase Attack Rate
	Enhance Taunt Effectiveness
Set Categories	Endurance Modification

Static Discharge

Hurls multiple bolts of Mu electricity in an arc that deals damage and drains Endurance from all affected foes in the area.

Damage	Moderate Damage(Energy)
Recharge	Long
Minimum Level	44 (Arachnos Soldier)
	44 (Arachnos Widow)
	41 (Blaster)
	44 (Brute)
	41 (Mastermind)
	44 (Tanker)
Effects	Ranged (Cone) Foe: -Endurance
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Range
	Increase Attack Rate
Set Categories	Targeted AoE Damage
	Endurance Modification

Summon Adept

Scirocco will show you how to call upon a mystical Mu Adept to assist you. The Mu pulse with the blood of their slaughtered ancestors in their veins, and are well practiced in the dark arts.

Damage	Moderate Damage(Energy)
Recharge	Extremely Long
Minimum Level	44 (Blaster)
	47 (Corruptor)
	47 (Defender)
	47 (Scrapper)
	47 (Stalker)
Effects	Summon Mu Adept: Ranged
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Heal
	Enhance Hold Duration
	Increase Attack Rate
	Enhance Sleep Duration
Set Categories	Pet Damage
	Endurance Modification
	Recharge Intensive Pets

Summon Guardian

Scirocco will show you how to call upon a mystical Mu Guardian to assist you. The Mu pulse with the blood of their slaughtered ancestors in their veins, and are well practiced in the dark arts.

Damage	Moderate Damage(Energy)
Recharge	Extremely Long
Minimum Level	47 (Controller)
	47 (Dominator)
Effects	Summon Mu Guardian: Ranged
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Heal
	Enhance Hold Duration
	Increase Attack Rate
Set Categories	Pet Damage
	Endurance Modification
	Recharge Intensive Pets

Summon Striker

Scirocco will show you how to call upon a mystical Mu Striker to assist you. The Mu pulse with the blood of their slaughtered ancestors in their veins, and are well practiced in the dark arts.

Damage	Moderate Damage(Energy)
Recharge	Extremely Long
Minimum Level	47 (Arachnos Soldier)
	47 (Arachnos Widow)
	47 (Brute)
	47 (Tanker)
Effects	Summon Mu Striker: Ranged
Enhancements	Enhance Accuracy
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Heal
	Enhance Hold Duration
	Increase Attack Rate
Set Categories	Pet Damage
	Endurance Modification
	Recharge Intensive Pets

Surge of Power

When you activate this power, you transform your body into living Electricity and become extremely resistant to all damage but Psionics, as well as Disorient, Sleep, Hold, Immobilize, Knockback, End Drain, Recovery DeBuff, and enemy Teleportation. Your Endurance recovery is also increased. As Power Surge wears off, the charge in your body explodes in a massive EMP pulse. However, expending all this energy will leave you exhausted, and drained of almost all Health and Endurance.

Recharge	Very Long
Minimum Level	38 (Controller)
	38 (Dominator)
Effects	Self +Resistance (All -Psionics)
	Self: +Resistance(Disorient, Sleep, Hold, Immobilize, Knockback, End Drain, Recovery DeBuff, Enemy Teleportation)
	Self: +Endurance Recovery
	Attack: Special EMP Pulse
Enhancements	Enhance Accuracy
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Hold Duration
	Increase Attack Rate
	Enhance Damage Resistance
Set Categories	Resist Damage
	Holds
	Endurance Modification

Thunder Strike

A massive attack. You smash your foes with all the power of a lightning bolt. The pummeled victim takes tremendous damage and may be Disoriented. Any nearby foes may be knocked down and take some damage from the shockwave.

Damage	High Damage(Smashing/Energy)
Recharge	Slow
Minimum Level	44 (Mastermind)
Effects	Melee(Area of Effect)
	Foe Disorient, Knockback
Enhancements	Enhance Accuracy
	Enhance Damage
	Reduce Endurance Cost
	Enhance Knockback Distance
	Increase Attack Rate
	Enhance Disorient Duration
Set Categories	PBAoE Damage
	Stuns
	Knockback

Zapp

A focused blast of Mu electrical energy that can travel great distances with high Accuracy. Zapp drains Endurance, and is best fired from a distance as it can be interrupted. Some of the Endurance you drain may transfer back to you.

Damage	Extreme Damage (Energy)
Recharge	Slow
Minimum Level	44 (Scrapper)
	44 (Stalker)
Effects	Sniper Foe: -Endurance
Enhancements	Enhance Accuracy
	Reduce Interrupt Time
	Enhance Damage
	Enhance Endurance Modification
	Reduce Endurance Cost
	Enhance Range
	Increase Attack Rate
Set Categories	Ranged Damage
	Sniper Attacks
	Endurance Modification

Historical

This section contains information about changes that took place in City of Heroes Freedom. It is provided for historical purposes.

This set was added to the game in Issue 7.
This set was included with the release of Arachnos Soldiers and Arachnos Widows in Issue 12.
Arachnos Soldiers, Arachnos Widows, and Brutes were granted access to Static Discharge in Issue 16.
This set was Proliferated to Hero Archetypes in Issue 18.