abstract
| - drain energy at a specified rate. Ability Efficiency affects the energy drained at each tick as expected, but because Ability Duration affects the amount of time between these ticks, the formula for effective Ability Efficiency for channeled abilities is as follows: Final Energy Drain = Energy Drain × (2 − Ability Efficiency) ÷ Ability Duration An important point worth mentioning is, as seen in the spreadsheet on the right, that the cost of such abilities is minimized at 190% efficiency and 40% duration, which is achievable with just two mods (Streamline and Fleeting Expertise). (The game displays 175% efficiency, but in actuality, the real formula is the sum of all mods.) The in-game energy bar display is rounded down to the nearest whole number, but the costs of the abilities are not. This results in the discrepancies in the apparent cost of abilities with Ability Efficiency mods. For example, an ability with 25 energy base cost will cost 17.5 energy with maxed Streamline (+30%). If this ability is used multiple times in a row, it will appear to cost 18 energy, then 17 energy, then 18 energy, then 17 energy and so on.
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