Dream of person, falling, died

I(not me personally but some other person, maybe a girl) was part of some kind of contest between other people, we had to stand inside our squares without being knocked off or else we lost/were dead, somehow I had gotten another chance, there were like eight of us all together, and there was this giant goblin moster thing that was running the show. If we could withstand the waves of stuff he threw at us, we would be granted enough power to over throw him. There was a spirit of my little sister that had died and thought it was my fault. We eventually made it past his hallway of doom, and filed out into this giant meadow that was incredabily vibrant, there were giant mountains and vast cities. Finally there was an army of orcs, followed by the giants, and then night elves. Together with our new found powers we began to fight them in a great battle. About half of us got separated and ended up chasing after the orcs when they retreated. Me and two other stayed behind at this giant tower of death lazer thing. We started talking with the queen of the elves and she told us how we could kill the giants daughter we could kill him, It was unclear which side the elves were on, but for the moment it seemed like she was helping us. We figured out how to fire up the death ray, and put it on full power and shot it into the sky. Imediadly the ground began to shake, and debris was falling from the sky, an entire platform broke off and slide into the abyss of this fantasy land.