"Fireball effects a 2x2 square, Lightning bolt effects 6x1 square, Hurl Boulder effects 1x1 and knocks target back 1 square, Wall of Fire effects 1x6 squares + % chance to light on fire"
Have to wonder if the Particle editor + .XML would allow this type of setup.
It would quite be neat to watch a Lighting Bolt, cast into a 3x3 grid full of enemies, randomly zigzag through that 3x3 grid, hitting it allowed max enemy units before dissipating.
P.S. I would guess the Particle Editor could do it graphically, from what little I have seen done with it to this point.
The related .XML may be another thing though...