Guild Wars 2

Are the weapons soulbound on use or soulbound once crafted? I just created a guardian alt figured it would be the easiest to farm karma, and get map completion with him.

Good question.
Should be account bound considering the req.

Soulbound on equip.

Another question: What happens if you transmute your legendary so you can get different stats on it. Would it turn into an Exotic?

it would take on the status of whatever stats you chose for it.
and in this case, it would then become orange and lose “legendary” status. it’ll stll have all the visual effects though.

iirc, ANet had commented on this, but i don’t recall what exactly. if it was intended or not. but the way transmutation worked was always based on the stats of the transmutated item.