If you speak to RuneScape gold the guy in Zamorak Robes, then he'll tell you he lost the trophy as well as the weapon, but to your valiant effort, he'll give you 100k along with a Dragon Longsword. The only means to acquire the actual decoration and weapon is to finish the challenge without going under 20 HP.
I've been thinking. . .How about meeting Zamorak or Saradomin?This is a new pursuit I believed up.You would go to Sedridor in the Wizard's Tower and then speak to him.He will inform you that they were able to make a time portal which could teleport you back into time.They stated they wanted someone to test it out they ask you to go in.You would go in the portal and you would be transported to a strange location.
You would be in the center of a significant battlefield and you will find bones and blood everywhere.They transported you to the God Wars!To the right you can view Saradomin's Camp.To the abandoned,Zamorak's Camp.Make your way to the camp of the God you genuinely like and if you arrive,you will be greeted with guards and then you are going to ask to speak with their commander.They will take you to the God you picked and you then get to meet the Gods themselves!
You say you are in the near future and that you went through some time portal.The God would then request that you share in a fantastic battle that would finish the God Wars forever!You would subsequently look outside the camp gates with a strong and well-armed army surrounding you.Then that the God would state some heroic words like something in a film and you and the military and the God would bill at another military which is also charging at you!
You would have to kill every Zamorakian or Saradominist you see with all the military helping you out.Then then,you would have to meet the opposing God and then Saradomin and Zamorak would bring up along with their swords and charge at every other.Just as they were going to battle,a bright flash looks and then you'd be standing beside Sedridor again.After you two had discussed the things you saw,some things associated with this God you served would appear out of nowhere.You get to buy OSRS gold keep the items as a reward.