[quote]http://destiny.wikia.com/wiki/Crux_of_Crota You need to have the eidolon equipped while killing crota?[/quote] I have 3 crux of crotas in my vault all obtained while eidon ally was in my vault also never had my glowhoo shader equipped... Its all bs fairytales people make up like the spirit bloom chest in vog.. The only stipulation is you have completed hard at least once with said charecter to have a chance for the crux to drop..