Domain Expansion

Clears every mob within a few blocks of the spot you aim at in one sweep, with no drops. They are not simply gone, though: the spell remembers which kinds of mob you consumed and how many, for later use. A circle grows out over the spot, the mobs are taken, and the circle collapses.

It never takes players, tamed mobs or leashed mobs. There is only one level, and it costs a great deal of mana and 10 soul.