Fantazia is the unique ruler of his own beyond-iteration, the reason being that there are no supergods or gods of any type, (including creator or destroyer) except himself.
Information[]
What makes Fantazia so unique is that his entire beyond-iteration is his own dream, or more specifically, his own Imaginata, meaning that if he wanted, he could instantly change anything by force without any problems with a single thought, within his dream, making him effectively all-powerful within his version of beyond.
Outside of his dream, he is obviously not as powerful as he is within it, as entities equivalent to himself are still able to give him a challenge.
Appearance[]
Fantazia's general appearance is meditating humanoid with a barrier around him floating through Transcendentem. When Fantazia turns into his entity form, this bubble vanishes and he is able to move throughout Transcendentem.