This is more about visible monsters or heroes, line of sight is pretty simple.
I have two levels of visibility, direct one and indirect one.
First of all, if your line of sight to a figure, is blocked by a wall, then you cannot see it, period. Cannot shoot at it or target spells at it.
But what I call indirect visibility, is when your line of sight to the desired figure is blocked by another figure(s) only, and not by wall.
Then you can cast spells as normal, but you can't shoot/throw something at it.
Only when you have direct (full) visibility and you line of sight is not blocked by anything can you shoot ("send") something to the figure you want.
In addition, I have divided the main spells into two groups, one group needing direct visibility to cast, and one group needing only indirect visibility.
It just so happens that only "Ball of Flame" needs direct visibility in my games, as it is a fireball that actually needs to travel from your square to the target's.
But with a healing spell, to heal a buddy of yours, you just have to partially see him behind an Orc, to magically transfer your healing energy to him. There is no need for throwing something to him, sprinking him with water or anything of that sort.
For the Fire of Wrath I have decided that you do not need direct visibility, as I feel that it isn't a sort of magic missile, just some magical way of blasting someone with flames, not flames "sent" by where you are standing, but I guess some players might want to think that it is sort of a fireball as well, so clear visibility should be needed.
How does everyone feel about that? I think it enables the Wizard(s) to be more active in critical times of a fight that melee heroes are blocked behind enemy lines.































