The ability to determine what items u get from cores?

Is their a command that give you the ability to say what item will be dropped from a core? I want to know because farming blade pierced bone is a B---- so yea lol i want to know if there is a way where i can make it so that all 4 cores from hard mode run give me blade pierced.

server-side, so no.
Have fun farming or buy it off Market.

Yea, agreed. Only SERVER-sided. Good luck farming or buying it or just wait until the price goes down and then buy your black hammer armor or w/e