I fling a fireball towards a monster thats with 2 others around the tank. If the monster dies while the spell is in flight, the spell hits the air next to the 2 others and does nothing. In Guild wars 2, when the same thing occurs, the spell hits the other 2 monsters that are very close for part damage.
What Im saying is, even when a spell is single target, it should actually have a splash of say, 2 yards, like in gw2
Also, like in GW2, if i fire an arrow that goes through a fire spell like a wall of fire, it should turn into a fire arrow…spell interactions like that are awesome, they make fighting in a group fun because it adds another layer of complexity to the combat.