I'm a little curious on somethings.

These are relating to Xenoblade chronicles 3, the first is what happened to the trinity cores?

I can tell the one Alvis has is used as the villain in the prequel DLC but what about the other two? I've not played Future Redeemed yet guessing it's explained there.

And my other question is about N/Noah's sword, are there multiple versions of it or is it something else?

Don't know the right flair & sorry if this is a dumb post btw