Dying : your character cannot die, unless you want them to, to die, you may have your character, a friend's character, or a different character of yours kill them via role play in the Portal Garden forum. Remember to RP out your death, in any manor.
Whoever has the soul to the fallen character may revive that character. Souls cannot be destroyed, but they can be stolen, unless you get a certain item that disallows this.
Questing Combat : this is the only part of the game, that you can get killed in, but not to worry, you only die in that 1 quest (if you die in a quest, it will not be counted as a full quest if you are seeking godhood). The QM will determine if you hit or miss your mark.