This is a possible solution, make the weapons returnable for totems, keep the totems trade-able, then the following happens:
- you win an extra weapon, it is NOT UNIQUE, but NOT TRADE-ABLE, then
- you return the weapon for totems, give the totems to deserving player, player can get a weapon.
- save totems, sell them for gill, other players can get weapons.

or:
- morph the weaspon.
- provide a quest to receive an item which can morph an ifrit weapon to another ifrit weapon. people will play the ifrit once then play for that item too, and they wont camp the damn place.