What are the most powerful attacks that Ichigo can perform with Tensa Zangetsu Bankai?

Ichigo’s most powerful attacks with Tensa Zangetsu Bankai are:

* Getsuga Tenshō: Ichigo fires a powerful blast of energy from the tip of his sword.
* Final Getsuga Tenshō: Ichigo's most powerful Getsuga Tenshō, which he can only use once.
* Mugetsu: Ichigo's most powerful attack, which unleashes all of his spiritual energy in a single blas