You are now the owner of the Moon Cell, a gigantic, 4.6 billion-year-old supercomputer composed of photonic crystals created by an unknown civilization, that can affect the outside world with its internal calculations.
The Moon Cell has tremendous calculation and information processing ability, able to scan the entire Earth about once per nanosecond and compile the results of its scan in its database. It has a database of human history that can faithfully simulate all life on Earth and is capable of providing a definite prediction of the future. It is a processor with a massive memory that has recorded the habits, history, ideas, and even the souls of humanity.
Its many capabilities also include the ability to generate reality marbles, create AI, summon Servants, create new ones, and grant people the powers of Servants using its vast database, which has recorded everything since 100 million years before the birth of the planet Earth itself.