[@Framing A Moose]
	the ritual itself takes a lot to begin with, and their supplies do constantly drain aslong as the summon is with them, it's basically like a leech on your energy, which is why Oni said they could only handle Channeled form currently, because it uses the less magical supply, each form takes a different amount of magic to use and sustain. the summon returns to where they came from, so for elementals back to their elemental plane.