The Last Stand/Orb of Vengeance ability

Orb of Vengeance ability    Data version: 3.19.1
	Unit(s)	Chaos Sorcerer	Enables the retaliation mechanic for all allied sorcerers with Scroll of Vengeance in radius 10 around the spot where the ability was used. Duration 15. Cooldown 15.
	Requires	Scroll of Vengeance
	Cost	10

*.rbf filename is simulation\attrib\ability\core\race_chaos\orb_retaliation.rbf

*.rbf name of the variable which enables retaliation is retaliating

AI: 80% to use when an enemy is closer than 10, 3-6 recharge time, no initial use.

$\text{retaliation damage}=\text{weapon damage}\times (1-\text{armor mitigation})\times 1.5$

$\text{weapon damage}$ is damage per burst, while each bullet hit applies full $\text{weapon damage}$ to the attacker.

Example: weapon does 10 damage per burst, 10 bullets in burst, so each bullet deals 1 damage. When the bullet hits the retaliating sorcerer with 1% armor, it does $\frac{\text{weapon damage per burst}}{\text{number of bullets in burst}}\times (1-\text{sorcerer armor})=1\times 0.99=0.99$ damage to the sorcerer but $\text{weapon damage per burst}\times (1-\text{sorcerer armor})\times 1.5=10\times 0.99\times 1.5=14.85$ to the attacker.

Retaliation completely ignores armor of the attacker.

$\text{armor mitigation}$ is affected only by the sorcerer's current armor and the enemy's armor piercing, it is not affected by Ward, Fortune and other damage mitigation abilities which don't change armor.

This orb is very effective against high bullet count per burst enemies, such as assault cannon dreadnoughts and non-superheavy tanks with heavy bolters.