Question regarding weapons

Greetings all.

After some time away (playing WoW), I am back & have 2 questions regarding weapons.

1) I would like to know if Factions/Nightfall weapons can be used in Prophecies. I do not have the 2 expansions yet.

2) I am considering getting Nightfall, If I do will I be able to use all 3 campaign weapons in it?

thank you for the help.

Yes. Yes.

You won't find Factions weapons droping in Prophecies (ie katanas won't drop in Phrophecies) or vice versa. However, if you buy an item from somebody or bring it over from another campaign, you can use it anywhere.

Additionally, Elonian weapons can now be inscribed... This means you can remove a 15^50 bonus and apply it to any other inscribable weapon.

(Elonian weapons only mind)