Loki didn't want to think about Thor's concerns as to whether he'd failed him or not. As far as he was concerned, it wasn't Thor's place to worry about him - as much as they were somewhat in a position of a truce now, he hadn't forgotten the past thousand years and he was sure Thor hadn't forgotten Loki's transgressions, either. He hated the idea of being some kind of... pity case, unable to look after himself and being under Thor's care. "Ha. I feel as though she would underestimate my ability to traverse the branches of Yggdrasil. I suppose unleashing the Níðhöggr upon her realm would be questionable, but... fun, overall."
"Ugh," he wrinkled his nose. "The watering down of sorcery over thousands of years and cultures. Fantastic," Asgard was not the first to use magic in any sense of the word but Loki was perfectly happy with how it was right now. "Entertainment or disappointment, take your pick."