Imagine throwing a grenade. The grenade itself has about a 7.5cm diameter but a kill zone of about 5m. Even so, you only need concern yourself with the size of the grenade itself when targetting, not its AoE. So to relate this to the small fireball spell, imagine you cast it by throwing an object that explodes on impact and hits everything in a 4m radius. How big is that object? I guess, put another way, how much space do you need to be able to target your small fireball spell without obstruction?
Last edited by kerbarbles; 10/01/15 09:42 PM.
