Frieza has undergone training in a time chamber to achieve the Black Frieza state, becoming the ultimate menace.
In the Dragon Ball Super universe, Chapter 87 of the manga has marked a significant turning point. At the climax, just when the battle between powerful warriors like Granolah, Goku, and Vegeta against Gas seemed to be concluding, Frieza makes a surprising appearance.
The unexpected appearance of the tyrant Frieza alters the entire landscape. His return is shrouded in mystery, potentially holding profound significance for the future storyline of Dragon Ball Super.

When the villain unexpectedly appears, he effortlessly dispatches Gas. Furthermore, he also deals with Elec. Notably, while bidding farewell to Gas, he seemingly transforms into the new Black Frieza state within a short period.
Goku and Vegeta wonder how Frieza could dispatch Gas so easily. Frieza explains that he has spent time training and has become stronger. Frieza also doesn't hesitate to boast and demonstrate his dominance in the Black Frieza form by overpowering both even though they are in True Ultra Instinct and Ultra Ego forms.
By defeating Gas, overpowering Goku and Vegeta, Frieza indirectly asserts himself as the strongest in Universe 7.

Also in chapter 87, Frieza admits to having spent time living in a different dimension. In one of the places Frieza occupied, he stumbled upon a room where time flowed differently from the outside world. Training here enabled him to condense 10 years of training and achieve the state of 'Frieza the Great Emperor'.
Frieza's revelation raises questions about many previous assumptions regarding the 'hyperbolic time chamber' - a special room located in the heavenly realm under the supervision of the deity Kami. The hyperbolic time chamber represents an alternate dimension of the universe (from Earth's perspective). Thus, there may exist several such chambers scattered throughout the universe.
Vegeta has previously speculated, and even the Angel Merus seems to be aware of dimensions like these.

Clearly, Frieza has provided valuable information. This opens the door for new story arcs and significantly expands the mythos of Dragon Ball Super. It not only alters our understanding of the Time Chamber but also raises questions about the relationship of these locations with the deities in the narrative.
Frieza appears poised to play a more pivotal role in the narrative. Fans can anticipate delving deeper into Frieza's newfound power, as well as gaining a more profound insight into the lore and mythos that enrich the vast universe of Dragon Ball Super.
