from what i understand he didnt keep the other powers, he only used them for a little while after their death until he used up the power, or something like that, gluttony is the only one that has been permanent, and im assuming its either because gluttony aint dead or because its sealed inside him, or because its the first one he got
Well, wasn't the point of his/gluttony's powers is to consume and get that ability they consumed?
yes but maybe its limited for some reason, maybe he might get the fully copy other powers later on
okay so previously he kept diff powers right? but ig for the 8 gods or wtv he can just keep one at a time?? except for gluttony?