(Welcome to a piece of my head canon for the MCU...)

It had taken all the magic he possessed, all the power he could summon, but it was worth it, not least to see his brother's tears.

Fooling the titan who wished to end them all, it had been far from easy, but the task was done and escape was possible, for now.

Still, Loki was uncertain what kind of world he had the freedom to run into, and trickery would only get him so far, if the worst was indeed yet to come.