Fan:Meianmon EX

Meianmon EX is the Legendary Knight Digimon and the carrier of X-Antibody. This Digimon is the legendary and highest form as well the final Digivolution of Meianmon combined with Eosmon to form the Holy Knight-esque Digimon. When Eosmon gains the heart and free will from the human's bonds, Eosmon converts its body into an armor for Meianmon X and transfigures herself into her final form. This Digimon is confirmed to be the final DNA Digivolution of Meianmon and Eosmon joins as one Digimon.

Samuel's Last Journey Arc
When Samuel Nakaoka the Second is killed and his incarnation spirits are stripped away by the malevolent god of all control: Daromin for destroying the law of all worlds, their friends are mourn their death and Daromin attempt to revert the worlds without Samuel Nakaoka's interference. But Menoa tried to stop him that Samuel Nakaoka is never do such a evil plot, but Daromin refuses to listen as he begin to revert the worlds. However, with the surprising help of an enraged Nagisa who reacts his death punches Daromin's face, knocking him out towards the negative energy reactor. Nagisa hold Samuel Nakaoka and encourages him to don't die yet. After he was awakened by Nagisa and Reginald's wishes and hope, Menoa notices something about her and Samuel's feelings and hearts combined and asked Samuel Nakaoka about her true life. Realized that she was being used by Daromin, she and Samuel will join together to fight Daromin which Samuel Nakaoka and Menoa using their Digivices together and shouts "We'll fight together, as one warrior of bonds of all history!" (In the original Japanese version, "This is our strongest bonds!") and Meianmon X and an revived Eosmon DNA digivolve into her final form while they see their past memories and his incarnation spirits revived him back to his full strength and merged with Samuel Nakaoka and Menoa as one consciousness.

After the battle against Daromin, she de-DNA digivolve back to Betamon and Tapirmon along with Eosmon in her true form. But sadly, Menoa was arrested by the police force, but Samuel Nakaoka attempt to stop the police force and tell them that she save the world and set her free from Daromin. However, Samuel Nakaoka was stopped by Menoa that she was responsible for her cruel actions and won't forgive herself. Menoa is also revealed that was the same girl who possesses the unusually power of BEAST King, the same one that Samuel Nakaoka possessed and give him the butterfly necklace as a farewell gift. In the end, shockingly, Samuel Nakaoka is extremely horrified by Menoa was apparently executed and he's lost everything to fight for fun and decide to leave Team Samuel quietly.

Shockingly in Cardfight IF arc, it was revealed by Rai Shadow that Samuel Nakaoka the Second's Spirit Core is begin to die because of Daromin's destructive attack pierces through his Spirit Core and his soul will begin to cease to exist until his Spirit Core is finally died off in the penultimate episode.