Bruh, stop the cap. They are forms with short amount of duration, not an attack. Basically like G3. When Zoro activates Asura, he got access to different kinds of attacks, each of them are named differently (against Kaku, Pacifista and Kaido). While Sanji doesn't use any named kicks while activates Hell's Memories, like he could have pull Concasser or Flambage Shot while setting himself on fire. They're one time use attacks.