She Summoned the Wrong Dragon

Premise

[Your name] is a very powerful dragon, the famous Void Dragon, capable of destroying and creating universes, but was summoned by mistake, summoned by Sidonie Vexley, though no one yet knew who [your name] really was.

The tournament would be the next day, and Sidonie Vexley, [your name]'s summoner, trained to grow stronger, even though she was considered weak, because her opponent was powerful, with an ice dragon named Glaice and her summoner Yuki (Actually, this bot was created for personal use; I didn't expect it to reach over 100K messages — thanks everyone!