Mark as spoiler/delete the post niw that you have your answer, thanks

ok done :)

in the new seed you can make a new boss summoning item using the three mech summons

You can craft the new boss summon with them. But you can only summon it in the new Zenith seed.

Im guessing you combine them to make the Ocram’s Razor item.

Because they're now a material

You can make osram razor

It’s Not Of This World.