Energy management guide (PvE)

"Energy management" generally refers either to how characters use various skills that give themselves more energy in addition to that created by their natural energy regeneration or to a plan for using energy. This article is a brief overview of energy management techniques used often in player-versus-Enviroment (PvE).

In addition to what skills a character uses, the character's overall build, in terms of skill costs and recharges (i.e. how often skills are used); attributes (i.e. Expertise and Soul Reaping); and equipment (i.e. zealous upgrades) are important considerations.

Energy management attributes
The following primary attributes have inherent effects which can be used to either gain energy or reduce the energy costs of skills:
 * Expertise
 * Soul Reaping
 * Critical Strikes
 * Leadership
 * Mysticism

The inherent effect of the Energy Storage attribute does not reduce energy costs or provide (direct) means to recover energy, however it does increase the energy capacity.

Common energy management skills
The two general criteria for usefulness of an energy management skill are the net gain over time for using the skill and the attribute cost of the skill. The former considers the energy gained minus any costs and how often the skill can be used. The latter is not simply the attribute points invested for a skill but the opportunity cost of spending those points (which may mean picking a certain secondary, making your other skills less effective, or strengthening skills linked to that attribute). A skill might also have secondary considerations specific to itself such as particularly effective combinations of skills or how easily the skill can be countered.

Considerations When Choosing Your Energy Management
While some energy management skills provide more energy total, you need to consider other important factors when choosing which one to use, such as:


 * 1) Difficulty and Opportunity - A skill such as Energy Drain is easy to use and has a wide window of opportunity, requiring nothing more than an enemy target. A skill such as Power Drain will net you significantly more energy, but has a small window of opportunity as it requires you to interrupt a spell. On the opposite end of the spectrum we have the elite Mantra of Recall which has a near-infinite window of opportunity, but a smaller payoff.
 * 2) Secondary Costs - Skills like Offering of Blood have, in addition to the initial energy cost, a sacrifice cost as well. When you're playing a monk, it's generally not a good idea to choose Offering of Blood as your energy management since you will be an easy target, and you don't want to be sacrificing health when you're under pressure.
 * 3) Reliability and Vulnerability - Long-duration skills, such as Elemental Attunement, are vulnerable to enchantment removal. Short-duration skills that need to be spammed to be useful, like Boon Signet, are vulnerable to disabling interrupts like Diversion. Every skill has a weakness; select one you'll be most able to cope with.

Bonetti's Defense
Bonetti's Defense, which provides energy whenever a melee attack is blocked, is useful for any melee build which uses Energy-based skills.

Flourish
Because it is linked to Strength, it is only useful to primary Warriors. Flourish provides a single, large energy boost as well as recharging all attack skills.

Warrior's Endurance
Much like Flourish, Warriors Endurance is linked to Strength. But unlike Flourish, it provides constant energy to fuel a steady stream of Energy-based Attacks.

Air of Enchantment
Air of Enchantment is extremely efficient for spamming enchantments on a particular ally. 5-energy enchantments such as Reversal of Fortune and Guardian can be cast indefinitely, as the single point of energy will be regained during the cast time. Having at least 12 points into Protection Prayers (or 9 with a weapon of Enchanting) will provide enough time to recast this on that ally at the reduced 1 point cost. Larger-cost enchantments may easily work into the cycle. The drawbacks are that this may not target the caster, the spells must be enchantments for the reduction to apply, it is only possible to maintain this on one ally at a time, and that, as an enchantment, it may be removed (although the spammed enchantments often cover it from single-enchantment removal). While not recommended for a monk trying to keep an entire party alive, it can be a great asset to keep a single target alive. Due to the encouraged enchantment spamming, Zealot's Fire is often used for a cheap source of damage to foes around the target ally.

Blessed Signet
Blessed Signet is used by monks, such as bonders, that maintain many enchantments. Combined with Balthazar's Spirit on a bonder or Mantra of Inscriptions, Blessed Signet can turn maintained enchantments into a source of energy. The main weakness is Blessed Signet needs to be used often and has a slow activation, making it a prime target for interruption. Distracting Shot or Diversion can potentially shut down Blessed Signet and force all but four of the maintained enchantments to drop.

Boon Signet
Boon Signet is another no-cost heal, usable every 5 seconds, which gives energy based on how many enchantments that player is under (2 energy per enchantment, maximum 6 energy). Due the progression of Energy Gain/Second for Boon Signet, each maintained enchantment of the monk on himself will nullify the won energy from that enchant. It allows the monk to heal and gain energy at the same time, and it also frees up the monk's secondary -- it can also allow a prot boon monk to have 16 divine favor and 13 protection (or 16 divine and 15 protection with a second superior rune; hp armor can be used to offset the additional hitpoint cost), thereby focusing on two primary monk attributes instead of having to be spread across three. There are some drawbacks, however; because of the one second casting time, and the relatively low healing and energy per use, the monk must constantly use this ability in order to sustain his energy. This can be problematic, especially in situations where the monk must kite to stay alive.

Signet of Devotion
Signet of Devotion is a no-cost heal, that is particularly efficient against energy denial and opponents without the ability to interrupt. Due to the long casting time, it is often coupled with spells like Guardian, Shield of Deflection, Distortion, and Bonetti's Defense. However, it becomes less useful with a Divine Favor attribute below 13, and is more effective against degen and pressure than spike damage.

Consume Corpse
Consume Corpse can also be a viable energy management skill but this facet is usually overshadowed by its use as corpse control. With no recharge, use is limited only by available corpses, which can be both a boon and a curse for energy management. When primarily used for corpse control, usually only enough points are invested to make the energy gain balance the cost. But, on a character with strong Death Magic, Consume Corpse can provide large amounts of energy.

Offering of Blood
Offering of Blood, while once the preeminent elite energy management skill for monks, has since been patched to lower its overall effectiveness by increasing its sacrifice. Offering of Blood is now mainly used in energy intensive primary necromancer builds or other builds that can gain use out of the Blood Magic investment. The strengths of OoB lie in its relatively fast recharge (15s), its fast activation (1/4s), and that it is guaranteed to provide energy without any special external considerations. The downside is the 20% sacrifice, which, besides potentially costing energy to heal, can be hazardous to use (or with low health, impossible to use).

Channeling
Channeling is often used in the Heroes' Ascent tournament because of the potentially large number of enemies. Monks very often use Channeling as non-elite energy management. Channeling is particularly discouraged for use in GvG by monks because they are generally supposed to hang back and out of the fight, but in HA, things are more chaotic and hanging back might not even be possible. Such a melee often makes Channeling more effective, not uncommonly to the point of having 5 energy spells actually provide the caster with energy. While Channeling is an enchantment, its low cost and recharge somewhat mitigate the usual drawbacks of enchantment removal.

Drain Enchantment
Drain Enchantment used to be an important skill in Arenas such as Team and Heroes' Ascent. But after the Nightfall update the recharge time was increased to 30 seconds, as opposed to the previous 25. In addition, the energy gain from it was drastically reduced, along with many other highly used Inspiration Magic spells. Perhaps this was done to protect the Dervish profession in competitive play, as many of the buffs used are enchantments. Two people with Drain Enchantment can dramatically reduce the damage potential of a Dervish. Inspired Enchantment offers a slightly shorter recharge time (instant if it fails to remove an enchantment) and a somewhat lower energy gain, similar to Inspired Hex above.

Energy Drain
Energy Drain, changed to a lower recharge in the same patch that changed Offering of Blood, is coming back into use, particularly by monks. The energy stealing nature of Energy Drain is double-sided: you deny the enemy energy, but if that enemy has little or no energy, then the user gains no benefit.

Inspired Hex/Revealed Hex
Inspired Hex has a dual role as energy management and hex removal. As straight energy management, Inspired Hex does not provide much net energy gain and simply as hex removal, it has a relatively high recharge. But, as a combination, Inspired Hex can be useful to provide modest energy to a character while also benefiting the team as a whole by removing a hex.

Mantra of Recall
Mantra of Recall, similar to Energy Drain, has gained popularity with the change to Offering of Blood. It has a relatively high net energy gain over time. While it is an enchantment, it doesn't follow the general trend of timely removal spelling disaster, but using a +20% enchantment length upgrade is undesirable. Casters having a second set of weapons is common (whether to combat energy denial or simply to have a different set of upgrades and modifiers), so the enchantment length upgrade problem is manageable. With a relatively high energy cost of 10, an early enchantment removal can break a user's "rhythm," so care must be taken to reserve some energy for Mantra when it recharges in such a case. For monks, Mantra of Recall also has a particularly useful combination with Contemplation of Purity.

Power Drain
Power Drain provides a very high energy yield and has a low cost but requires that the user interrupts a spell. For some characters, such as primary mesmers (who might be trying to interrupt the enemy anyway), this is not a problem. But, for monks, this might be distracting and detrimental to their efforts as a monk. Some players also seem to simply not have the knack for interruption, making this a poor choice for them. In some cases, the enemy might be short on casters so successfully using Power Drain might be more difficult than usual.

Note
The mesmer energy management skills are relatively versatile and can be used by either mesmer primaries or secondaries, without particularly regard to the character's role. In addition, they are all Inspiration Magic spells, so a character can make several varied skills available for energy management with investment into only one attribute.

Attunements
The elementalist attunements (Air Attunement, Earth Attunement, Fire Attunement, Water Attunement, and the elite Elemental Attunement) are extremely effective for elementalists (and the odd "fast cast elementalist" Me/Es), they are also fairly specialized. An elementalist using only one elemental attribute can reduce costs of his elemental skills by 80% by using attunements. Elementalist using more elements can still save an impressive 50% on all elemental skills by using just Elemental Attunement. However, as enchantments, attunements can be removed by the enemy - Aura of Restoration makes a good covering enchantment due to its long duration and low recharge time. It's not uncommon for an elementalist build to rely on dual attunements and their effect can be viewed the other way around: an elementalist with his attunements removed is now 50-80% less effective. It is also worth noting that Elemental Attunement has been changed to tie it to the Energy Storage ability, making it much less useful for secondary elementalists, and even primary elementalists without the attribute points to spare.

Ether Prodigy
Ether Prodigy is useful for elementalist primaries that bring skills from other professions and so attunements are not as useful. Prodigy's strength comes from high efficiency (vs exhaustion) with the ability to recast at any time if necessary(with low energy, after being removed, or even after resurrection). Prodigy is most commonly seen on E/Mos with both elementalist skills and relatively expensive monk skills such as Heal Party, Aegis, or Convert Hexes. Such monk skills are effective without the monk primary attribute, Divine Favor, and with only a moderate attribute investment. Like attunements, Ether Prodigy is an enchantment and so if consistently removed, Prodigy can be rendered useless. The other drawback to Prodigy is the potential damage it deals. The damage can be reduced by careful use of Prodigy and the energy it provides (or even by use of Heal Party).

Ether Prism
Consider combining Ether Prism with Glyph of Lesser Energy to mitigate its high cost.

Glyph of Energy
Glyph of Energy is commonly used in builds that occasionally use expensive spells or repeatedly use spells which cause exhaustion (Gale, Obsidian Flame, Earthquake). For expensive elementalist spells, also consider Elemental Attunement. (combine with Auspicious Incantation to gain 100%-196% of the original cost of that spell for a net cost of 10 energy with a gain of 25-49)

Attuned Was Songkai
A high level in Spawning Power decreases energy costs significantly, rendering other energy management unnecessary. It can't be maintained for the whole duration, due a longer recycle time. Therefor the caster has a downtime, forcing him to either use only low energy cost skills or no skills at all. Recasting Attuned Was Songkai costs not only 10 energy. Holding the ash, will drop the casters maximum energy, since he loses his weapon set. Bear in mind to have at least 30 energy left, when casting Attuned Was Songkai. Otherwise, there will be no energy left to cast any spell. Furthermore, as an Item Spell, Attuned Was Songkai can be ended prematurely with knockdown.

Offering of Spirit
Offering of Spirit provides the same energy gain as Signet of Spirits, however it has a shorter recharge time, and if it is used without a spirit in earshot, it requires a 17% health sacrifice instead of not functioning. Higher benefits require more points in Channeling Magic.

Reclaim Essence
This spell is very useful when you have summoned spirits like Life or Restoration. When Life dies, your party is healed for 1...6 health for each second when it was alive, and Restoration resurrects nearby allies when it dies. Your party is healed and you gain energy.

Signet of Spirits
Signet of Spirits requires at least one spirit within earshot for an energy gain. Higher benefits require more points in Channeling Magic. The main advantage which Signet of Spirits has over Offering of Spirit is that it is affected by signet recharge skills. Unlike Offering of Spirit, energy per second of Signet of Spirits can be improved with Mantra of Inscriptions, however it is also vulnerable to signet counters.

Net energy per unit time for selected skills
The following tables list some of the above skills and their net energy gain per unit time. This is computed as:

(energy gain - energy cost) / recycle time

for each given skill, assuming the given attribute rank for the linked attribute.


 * Recycle time is activation time + recharge time for a skill, unless noted.
 * Skills are assumed to always achieve their full effect (as in, there's always a hex to remove or the enemy has enough energy to satisfy Energy Drain).

Peace and Harmony
1Bold numbers show the breaking points for maintaining it on another Ally as soon as the duration doubles the (activation + recharge time) 2Maintaining it constantly on yourself only.

Energy Boon
1considering to recast it in a 30 seconds cycle, so Exhaustion doesn't stack

Ether Prism

 * 1) Assuming no other Energy management skills and 4 pips of energy regeneration.

Ether Prodigy
1considering to recast it in a 30 seconds cycle, so Exhaustion doesn't stack

Blood is Power

 * 1) Assuming target ally has 3 or less pips of Energy regeneration.

Blood Ritual

 * 1) Assuming no rounding.
 * 2) Not counting energy regeneration.

Inspired Hex/Revealed Hex
1recycle time is 21 seconds

Inspired Enchantment/Revealed Enchantment
1recycle time is 21 seconds

Second Wind
1This presumes Exhaustion is maintained at the level shown (and Second Wind is cast once every thirty seconds).