Guild Wars 2

can you stack underwater legendary aura on land?

On land, you don’t have the weapon equipped. It’s the same as if you had a legendary on your currently inactive weapon swap set.

Astralporing.1957:

On land, you don’t have the weapon equipped. It’s the same as if you had a legendary on your currently inactive weapon swap set.

…and you can get a Legendarys Aura even if it’s on inactive weapon swap set. Also I have seen a guildie with Spear Aura, Warhorn Aura and Staff Aura on same time.

You can do it by having the Legendarys equipped on weapon slots and then manually swapping a random weapon from your inventory on and then back the one you had on.