Impulse Damage

Our server uses the old familiar formula for magical skill failures based on the skill's magic_level, but we've also applied the new parameters of magical accuracy and evasion.

Alternative use of magical accuracy and evasion:

All magical classes except Orcs receive the toggle skill from level 1 Impulse Damage.
Orcs receive Impulse Damage only from level 20 of the Orc Shaman class.
When you deal at least 10% of your max HP as damage with a single-target magic skill to a target no more than 5 levels below your own, a formula based on your M. Accuracy and the target's M. Evasion applies — for each success, you gain +1 Impulse Power.
After reaching the maximum Impulse Power gauge, if the skill Impulse Damage , your next single-target magic skill will deal 50–75% more damage in PvE and 30–50% in PvP. The Impulse Power gauge will then reset and start accumulating again as described above.
On magic failure, no bonus damage or gauge progress is applied.
Impulse charges are not saved when exiting the game.

The skill can be activated not only via Alt+K, but also from the additional bar with the gauge:

When the gauge is full, it starts flashing with a golden frame.

If the skill Impulse Damage is disabled when the gauge is full, the skill icon will glow to indicate that bonus damage is ready to be used:

When bonus damage is used, a message is sent to system chat and a floating message appears over the target if damage display is enabled in game-client settings. A similar message is shown to the target (if it's a player), highlighted in warning red color.