I have used Lightning Tribunal a hundred times. I have thrown it from my hands, in the form of a golden bolt, but this was using a fraction of this power. Perhaps my channels could take more punishment, but my soul could not.
Spells, you see, have a weight to them; they are the expression of our souls, and when your soul carries the tribulations from the heavens, that was the sort of weight that could break any mind.
However, this power had been granted to me when I stood before the heavens and told them that I was ready to pay the price to hold this golden lightning, and every time I held back, I had always felt some part of me was waiting, that part I did not call, and it was hungry to see what this spell could really do if I went all out.
I call it now, all of it. I reach past the cage I had built around this spell, and I summon the true form, and the true form of Lightning Tribunal is a thing that judges.
If the heavens are blind… then let me be the heavens.
