They do get brought back to life. let someone die, and then after you win the battle take a look, they are alive and well, just need to be cured alittle bit. also if u get poisoned during a battle, dont use an antidote, when the battle ends he is no longer poisoned. this was not so in past FF's. 9,8, and I believe 7... I know the first 3 werent so either. unfortunately i dont have the int. version, i live in the U.S. and i dont have any mod chips or what not to play imports.. maybe soon I will look into it. im not that hard on trying to fight a decent battle in FFX.

I wasnt aware that sephiroth could be killed in one move.. I did not get into 7 that much. I did have a save right at him, but as I recall he was difficult. I know I didnt get Knights of the round, never even heard of it while I was playing the game. I didnt bother getting a guide or checking to see what all the little side quests were. I know my guys were pretty powerful in FFVIII and it took sometime to defeat Ultimecia.