I do not think it would be convenient for them to appear to tell them that everything was a test, because they could develop hatred towards it.
It would be nice if when you enter the god lesser cap, with the power of the laws, each god can create his universe within him, as in martial world, haci, when a god gets a planet, he puts it inside his universe, which it is inside your body, the more strong planets there are, galaxies, etc., the greater your combat power will be.
It would also be interesting if the planets could evolve, through the war, when growers die, their energy merges with the planet, when it reaches a certain amount, the planet will evolve, increase its size, example, from planet to spirit, the The size of the planet increases by 1000, from spirit to earth, its size increases by 10,000, from earth to sky, its size increases by 100,000, and when a planet passes from heaven to divine, its size increases by 1000000 (one million).
also when you increase your cultivation, from minor god to ascending god, you can have 2 universes within them, and the number increases, until you reach a titled god, where within you, you can have a whole multiverse, the law that you can perhaps create to be a titled god, maybe it is the law of the infinite ?, multiverse = infinite.
the universe would be represented as a marble ?, as in super dragon ball in the palace of zeno-sama
It would also be great if the shaman empire, destroy the other empires, conquering the entire universe, the MC flees with some servants( woman) loyal to him, his father dies, but the MC takes all the knowledge of his clan, for there is a day when be invincible, take revenge and destroy them.