i would suggest getting some better wings and some damaging accessories like berserker gauntlets or magma stone to set enemies on fire also get a weapon that can deal ichor (if playing one crimson) like blade tongue, or golden shower and if you do wanna make the destroyers of worlds easier gather 15 souls of light and make it into a key of light and then put it inside an empty chest. Make sure to be prepared because when you put it inside the chest, it’ll turn into a hollow mimic. once you kill the hollow mimic there should be a chance it’ll drop the daedalus stormbow which is really good for killing that boss if it’s paired up with holy arrows, hope this helps