Lightning storm

Lim-Dûl had at last arrived on the battlefield.

The black hill was his mount. He rode a great step-pyramid, a ziggurat crafted of black wood and carried by a hundred undead slaves. It was a constructed mountain, and at its apex rode Lim-Dûl, beneath a great black canopy

(...)

Jodah began to pull the power in on himself to call down a lightning storm upon the pyramid. It would take time to pull together the mana, to shape it into the right vessel, and to send it toward his target. It was time he did not have.

***

The Eternal Ice, Chapter 15