Tenkuuha

"Tenkuuha: Enhanced Z Saber! You can cut enemy energy shots with your saber."

- In-game text

Tenkuuha, or Tenkūha (天空覇), also known as "Heaven's Air Supremacy", is the special technique and Z-Saber upgrade that Zero learns and obtains after defeating Storm Owl in Mega Man X4. 

Similar Techniques

 * Rekkyoudan from Mega Man X8

Counterpart to this Technique

 * Double Cyclone