Sliske: It's not so much a game - more survival of the fittest. There is only one rule, you see. It is only a matter of time until our moon - Zanaris - passes the sun, resulting in a total eclipse. Gielinor will be engulfed in shadow. It is at this exact moment the contest will end, and the winner will be the person who has killed the most gods.
Bandos: Haha! Finally you say something interesting!
Saradomin: Be quiet and let the intellectuals talk, you brute.
Armadyl: You truly have gone mad! Why would any of us listen to you?
Sliske: Because, Armadyl, there's a prize. Just one little prize that I think you might all be interested in. On the day at which the sun is eclipsed, someone will stand victorious with most of you defeated. And to that person I will gift... the Stone of Jas.
So it's not the situation you describe, since it's the first of the possibilities you mention. He's going to outright give them the Stone, rather than deciding the winner based on who recreates the Stone.
26-Feb-2016 16:00:43