Elbaf is currently facing a significant threat as the Heavenly Alliance and Imu launch an aggressive attack, marking a battle of unprecedented intensity. At present, the Heavenly Alliance and Imu are dominating the situation, a development that has been anticipated for some time.
The enthusiasts have gained a clearer understanding of the potential capabilities of the Heavenly Alliance, though there are still many unexpected elements. Oda has recently revealed the true form of one of the most powerful members of the Heavenly Alliance: Rimoshifu Killingham.
The Heavenly Alliance has unleashed the true strength of the evil dragon

The Heavenly Alliance is incredibly formidable, and it cannot be underestimated. Although Gaban has swiftly dealt with one name, the implication is that it does not imply weakness. It solely indicates that Gaban is extraordinarily strong. As seen in Chapter 1151 of One Piece, the Heavenly Alliance has only begun to increase the capabilities of the evil dragon to a whole new level, especially Killingham.
Previously, the enthusiasts saw Killingham transform into a Kirin form upon his initial arrival. Some fans have speculated about the various forms he can take, but the reality is that it is a true transformation. It is evident that he also possesses a complete Zoan form, as well as a fully human form.
In One Piece Chapter 1151, the enthusiasts will witness Killingham in a fully realized form, and it is clear that this is a true manifestation of his evil dragon form. As previously noted in the Wano arc, users of evil dragon Zoan will have additional transformations when they awaken. This is the reason why Luffy can achieve Gear 5 in his awakened state, and the enthusiasts have also observed the transformations of Lucci and Kaku in the Egghead arc. Now, another character has revealed his evil dragon Zoan awakening.
Killingham will utilize the awakened form of the Ryu Ryu no Mi, Model: Kirin

Killingham Rimoshifu is quite powerful, but until now, he has still been hiding his true strength. In One Piece Chapter 1152, Killingham finally unleashed his full power after entering the Kirin state.
In his awakened form, it is quite evident that Killingham has the ability to resemble a beast. He also maintains a human form while carrying his signature weapon. Killingham’s power has also been augmented significantly when he engages with this newfound strength, and it is crucial to note that it enhances his ability to control the transformation. This means that he can manifest more refined forms compared to many others in this state, and his expressions in this form are much stronger.
To what extent is Killingham powerful?

At this point, Killingham is certainly stronger than a high-ranking officer of the Marine Headquarters. Although it is quite difficult to precisely gauge his exact strength, it is plausible that he may exceed or rival any officer known from the Marine Headquarters, aside from Luffy.
It will be quite thrilling to see who Killingham will face first. The most likely opponent could be one of the members of the Straw Hat Pirates, potentially Jinbe. This would set up an exciting first clash for him as a member of the Straw Hat crew, considering how formidable Who’s Who had previously been.
Source: Gamerant