Energy core (drone) and its skills
Energy Traits are a special set of traits given by the Energy Core.
Traits are selected normally until the Energy Core is upgraded to level 3.
After reaching level 3 or above, traits are granted automatically upon reaching experience levels 6, 11, 16, 21, and 26.
Skills obtained at the beginning of the battle with the help of robots, skills obtained from elite zombies and bosses do not count.
During the campaign stage, you will receive the ultimate ability Reverb near the end of the battle when you have killed 4500 mobs. Depending on what bonuses for gaining experience you have (read here: https://zwcodex.com/ru/guide/opyt-xp)
Increasing the level of the Energy Core improves traits to their "+" version.
Energy Convergence
Issued at 6th experience level.
Basic skill. Increases maximum energy by +500 and energy recovery by +5, creating the basis for the entire energy cycle.
Restores energy once per second. The rate of energy recovery increases as the level of the Energy Core increases. Energy recovery bonuses work multiplicatively, for example: a 20% bonus restores 5 × 1.2 = 6 energy per second.
Power cycle
Issued at experience level 11.
Main energy generator. Activating [Lightning] restores energy, and spending energy summons [Lightning], creating a vicious cycle.
Does not require the Lord of Electricity.
Overloaded laserIssued at experience level 16.
Consumes energy each time Smite is triggered. Including automatic Punishment from the tactical skill Stargazer Feather. Strengthens Deft Hands.
Spontaneous cleansing
Issued at experience level 21.
The key skill is ultimate. Every 10 seconds it consumes energy, giving +120% damage with all elements. If there is a lack of energy, the effect is reduced by half.
Improved version: reduces energy consumption and significantly increases duration.
Reverb
Issued at experience level 26.
When using [Energy Skill], there is a chance of not spending energy, and also getting a double burst in firing speed and reload speed.
Author of the original article SAM.