Mikasa's Unrelenting Assault (P PROMO24 66)

Blitz: This attack gets +X damage. X equals the printed speed of the attack preceding this attack in your card pool (max. 5).

(Blitz—This ability is played automatically at the start of this attack’s Enhance Step.)
Charge, Weapon
Resources: A-Air
Attack
From the UniVersus card game set Attack on Titan: Battle for Humanity.