I'd also like to add something about RNG, yes rng is rng, but that in no way means that it is no longer rng if parameters are changed. If you watch many speedrunners playing older games, many have ways of manipulating rng based on certain triggers in the game because they might all be linked from what second you pressed "start" at on the main menu. The path an npc follows may allow you to know exactly where a future boss might spawn based on this.


As for atma, or any drop for that matter.... having increased parameters at a certain time/hour does not mean that its not still RNG. If something has a 1% drop rate your figuring that each time you kill mob/finish fate the dice are rolled and if it hits 1 out of a 100 you get ur item. IF the parameter was changed at a certain hour allowing a 10% drop rate, you would have a higher chance of getting the item, but that doesn't mean its not still RNG. People that are saying there are increased drop rates at certain times arent saying its a definite drop, just saying the parameters might be altrered for a better result, they aren't saying its not RNG.