"There is," he says to the demon, "a way to travel between worlds without being summoned. I will trade you the knowledge of how to make it for three of them and some help identifying a habitable planet in our new dimension."
Annnnnnnnd yep now he can freely distribute indestructibility, who wants some of that?
Meanwhile in Suranse -
"I think we should go visit the originator of the teleport spell and thank her for indirectly saving our world," says Inlaith.
Off they go to peal territory! Three identical boys with claws and fangs and tails, distinguishable mainly by the souls around their necks - Ashras's bright silvery sphere, Inlaith's black glittering four-pointed star, Elarron's flat coin-like circle with its subtly shifting colours.
A magical girl looks at them appraisingly when they appear in Revelation. "Hey there."
"Hi! Is there a particular procedure for visiting people in this corner of the multiverse? We have somebody we'd like to thank for indirectly saving our world."
"I'm Ashras Kevarsin and these are my brothers Inlaith and Elarron, and we'd like to talk to Loki if possible."
The magic rock looks some things up and makes some notes and says "D'you know the way?"
"Okay, cool. She might be busy but I'll let her know you're going to be there to say hi."