(Mentioned another desirably negative-duration ability that I've used before.) Tag: sourceedit |
(→Energy Drain Periodicity:
Added an explanation for how the rate of energy drain will actually go UP -- and rapidly outstrip the gains of increased Efficiency -- if the Duration stat is too low.) Tags: Visual edit apiedit |
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{{MathText|Final Drain Rate {{eql}} Drain Rate {{div}} Power Duration}} |
{{MathText|Final Drain Rate {{eql}} Drain Rate {{div}} Power Duration}} |
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* The '''Drain Rate''' is the amount of energy that gets drained over a length of time. |
* The '''Drain Rate''' is the amount of energy that gets drained over a length of time. |
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| + | This mechanism behaves differently from how Efficiency affects the cost of powers, which is why it is wise to be aware of how negative duration affects the cost of abilities vs. how positive duration does. Without any other mods to compensate for the reduced Duration, a "''High Strength and High Efficiency''" build — achieved by slotting a maxed [[Blind Rage]] (+99% Strength, -55% Efficiency), a maxed [[Fleeting Expertise]] (+60% Efficiency, -60% Duration), a maxed [[Transient Fortitude]] (+55% Strength, -27.5% Duration), and a maxed [[Streamline]] (+30% Efficiency) — will have a resulting Drain Rate which is deceptively high. |
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| + | * This is a pitfall worth being aware of, due to many builds modded for Maximized Strength using those four mods. The resulting Duration penalty is -87.5%, leaving a Duration stat of only 12.5%, which results in a '''Final Drain Rate''' which is '''''eight times greater''''' than the original Drain Rate (before Efficiency is calculated). |
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| + | :{{MathText|Final Drain Rate {{eql}} Drain Rate {{div}} 0.125}} |
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| + | :{{MathText|Final Drain Rate {{eql}} Drain Rate {{div}} (1 {{div}} 8)}} |
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| + | :{{MathText|Final Drain Rate {{eql}} Drain Rate {{mul}} 8}} |
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| + | Even when factoring-in the Efficiency gained from Fleeting Expertise and Streamline — over half of which has been entirely negated by the penalty from Blind Rage — the result is that each tick of Energy Drain costs '''65%''' as much as the base cost, but occurs '''''8 times as often'''''. That is equivalent to an overall ''increase'' in Energy Drain of '''520%'''. If Streamline is not included in the build, then the resulting increase is even greater: a massive '''760%'''. |
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Because energy drain is ''also'' affected by [[Power Efficiency]], the chart to the right can be consulted to determine a Warframe ability's real energy drain per second. |
Because energy drain is ''also'' affected by [[Power Efficiency]], the chart to the right can be consulted to determine a Warframe ability's real energy drain per second. |
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Revision as of 08:35, 28 February 2016
Power Duration linearly affects the duration of many Warframe abilities. Increased Power Duration usually extends the length of time that a power is active, but there are some unorthodox or otherwise unintuitive interactions the stat gives: for example, the maximum amount of charges for Tesla Link increases as a factor of added Power Duration. There are some instances where negative Power Duration is desirable, usually because it speeds up periodic effects like Trinity's Energy Vampire or Mesa's Shooting Gallery when augmented with Muzzle Flash.
All Warframes have a base stat of 100% (or 1.00) Power Duration.
- Final Ability Duration = Ability Duration × Power Duration
The remaining duration of an ability is displayed on the ability's icon in the bottom right corner as a number with two places. Hence, if the remaining duration of an ability is greater than 10 seconds, it displays to the nearest second. If the duration is less than 10 seconds, it displays down to the nearest tenth of a second.
Modifiers
Modifiers combine additively to the Power Duration stat.
- Final Power Duration = Power Duration + Modifier 1 + Modifier 2 + Modifier 3 + ...
Mods
Continuity, Primed Continuity, Constitution, and Narrow Minded can all be equipped to increase Power Duration. Note that as a primed mod, Primed Continuity cannot be equipped simultaneously with Continuity on the same Warframe.
Fleeting Expertise and Transient Fortitude both reduce duration of powers.
Arcane Helmets
Arcane helmets can also reduce (or increase) ability durations. The following helmets affect Power Duration:
Energy Drain Periodicity
There are abilities like Ember's World On Fire or Chroma's Spectral Scream which last for an indefinite amount of time but drain energy with each passing tick until canceled or if no energy remains. As of Update 18.0 (2015-12-03), Power Duration affects the periodicity (the time between repeats) of these abilities' energy drain ticks: if an ability normally drains a point of energy every 1 second, at 150% Power Duration that ability would drain a point of energy every 1.5 seconds.
Note that only the energy drain period is affected by Power Duration; the period between actual events, like the damage ticks from World On Fire or Banshee's Sound Quake, still remain at their original periodicity.
Final Drain Rate = Drain Rate ÷ Power Duration
- The Drain Rate is the amount of energy that gets drained over a length of time.
This mechanism behaves differently from how Efficiency affects the cost of powers, which is why it is wise to be aware of how negative duration affects the cost of abilities vs. how positive duration does. Without any other mods to compensate for the reduced Duration, a "High Strength and High Efficiency" build — achieved by slotting a maxed Blind Rage (+99% Strength, -55% Efficiency), a maxed Fleeting Expertise (+60% Efficiency, -60% Duration), a maxed Transient Fortitude (+55% Strength, -27.5% Duration), and a maxed Streamline (+30% Efficiency) — will have a resulting Drain Rate which is deceptively high.
- This is a pitfall worth being aware of, due to many builds modded for Maximized Strength using those four mods. The resulting Duration penalty is -87.5%, leaving a Duration stat of only 12.5%, which results in a Final Drain Rate which is eight times greater than the original Drain Rate (before Efficiency is calculated).
- Final Drain Rate = Drain Rate ÷ 0.125
- Final Drain Rate = Drain Rate ÷ (1 ÷ 8)
- Final Drain Rate = Drain Rate × 8
Even when factoring-in the Efficiency gained from Fleeting Expertise and Streamline — over half of which has been entirely negated by the penalty from Blind Rage — the result is that each tick of Energy Drain costs 65% as much as the base cost, but occurs 8 times as often. That is equivalent to an overall increase in Energy Drain of 520%. If Streamline is not included in the build, then the resulting increase is even greater: a massive 760%.
Because energy drain is also affected by Power Efficiency, the chart to the right can be consulted to determine a Warframe ability's real energy drain per second. [1]
Cooldowns
Most powers do not have a "cooldown" period, which is a mechanic in many similar games that disallow a player from recasting the same ability or power too frequently. However, powers in WARFRAME can often instead prevent you from recasting while the first instance is still active. Hence, if you have an ability that lasts 5 seconds long, you can only cast it once every five seconds. If you extend its duration to 8 seconds, you will not be able to cast it more frequently than once every eight seconds. This increase in uptime can be undesirable for certain abilities, such as Silence, which can be used as an on-demand stun.
