Countess is a burst caster whose greatest strengths are misdirection and unpredictability. Utilizing her abilities, Countess can quickly single out and assassinate a key target and vanish into the darkness.
Blade Siphon - Countess quickly spins her blades around her, causing damage in a circle around her. Passive: Countess regains a percent of her max health every time she kills an enemy, with bonus health for a Hero kill.
The new Paragon
hero Countess has been revealed. You’ll be able to play Countess starting Tuesday, October 25, 2016.
Shadow Slip - Countess targets a nearby enemy and blinks to it, dealing damage and applying a slow. If the target is a minion, it is executed. Reactivate to return to the original position.
Dark Tide - Countess sends out a roiling cloud of darkness in front of her, dealing damage to all enemies in the area of effect.
Feast - Countess jumps to a nearby enemy Hero, forcing them to look at her and stunning them before dealing a massive burst of damage. Countess is locked down for the duration of the attack.
Source: Paragon site