Acidic Blood

Acidic Blood is an ability to turn their blood acidic.

Description
Witches and warlocks that possess this power have to draw blood either by cutting their palms, wrists, and etc., and fling it at a specific target. The acidic blood will then burn a person wherever they flung it to, skin or eyes, making it burn. Eva Gardiner is the only witch known to possess this power.

Eva Gardiner

 * Eva cut her palm and flung her blood at Killian's eyes, making them burn and unable to see.