Telepathy 1

Dack concentrated. Touching an Eternal mind—let alone multiple Eternal minds—was more disconcerting than anything he’d ever tried before. Their thought processes were so remote, so, well…deadened, it made the hairs on his arms stand on end.

But the spell was simple enough. He focused on a crop of Eternals thirty yards in front of the portal, making them all think they were surrounded by Planeswalkers with harvestable Sparks. Inevitably, they attacked one another. Swinging their weapons. Grabbing hold and attempting to ingest. It was soon a melee.

War of the Spark: Ravnica, Chapter 39