Couple questions

First question: So i read that with the preorder bonus for Nightfall you get one extra character slot...is this in addition to 2 extra slots that come with the game if u allready have previous versions? (for example, I had 4 slots w/ prophecies, but when I got factions they added 2 slots) Or is it just one extra character slot?

Second, I have a warrior with armor that reduces physical damage, so should I bother to put a rune of absorption on him? Also, same question about his shield? (absorbs 2 physical damage)

Thanks

Yes; three more slots. If you want more absorption; go ahead.

Yes to both.

Adding an absorption rune likely will not interfere with your other runes and it'll make you tougher. There's no negatives that I can see.

My warrior always has weapon rune on the helm, superior vigor rune on the chest, minor strength on the gloves, superior absorption on the legs, and minor tactics on the feet. It doesn't matter the location you put the runes but I'd strongly suggest keeping your weapon runes on the helm, and either tactics or strength on the gloves, cause if you're using a build with knockdowns you might want to change to the special knockdown gloves (Stonefist I think they're called).