Blood projectile
are special abilities that the Revenant and certain Lost can use. Gift can consist of offensive (projectiles), buff (increase weapon's damage, increase defense, etc) and enhancement (chainable dash).

In order to use Gifts, the player require Blood Charges. Blood Charges can be obtained by successfully hitting Blood Veil attacks and attacking enemies. If you have maximum amount of Blood Charges (left image for example; 12), you'll increase the maximum amount carriable at that moment (13/13). Dying will lose the extra amount you've obtained. The small bar bellow the your current amount had indicates how much attacks left before you obtain 1 charge.