Critique this idea ([ low fantasy,200])

Often called destiny creation. It refers to how the auspicious timing and location of ones birth with relation to the corresponding celestial bodies may have an effect on the child born For example :if a child is born under starless night sky at a special or specific time he may gain the ability of having his strength amplified during night or in the darkness This requires calculation of many auspicious events like linking of various celestial bodies , eclipse or solar eclipse. Often time when an especially strong being is born many omen starts to show themselves such as :

»Unseasonal wind or thunder or rain as through declaring the birth of a valor protector

»Clouds gathering at one singular point as though nature itself is welcoming the arrival of the one who will bring ideas that will change history

So i have tried to add something but sadly i have too many ideas and none making any sense so i need help with actually making this power system(kinda) a bit more unique and make sense(like how do the children born during this time get power? Or From where? ) any ideas will be greatly appreciate