Let's say there's a spell that creates caravans that channel lightning between them:
As individual caravans move around in different directions and speeds, the lightning channelling between moves with them as well, changing the overall shape of the formation.
The question is: What's the best method of making the lightning damage any units that walk through it?
As individual caravans move around in different directions and speeds, the lightning channelling between moves with them as well, changing the overall shape of the formation.
The question is: What's the best method of making the lightning damage any units that walk through it?