Assuming Aurora Execution is literally the move someone uses (yes in reference to Saint Seiya), then its not King.
Look up all of King's moves, they all end in "don" or literally "Emperor"
- Tankyudon
- Tempuraudon
- Barizodon
- Andon
So it's not him. It would have to be Zoro if it's that fight, but that's an admittedly weird name coming from him (because his moves are always in Japanese, so it's interesting Lance wrote it in English here)
Queen has his move names in English and they are weird:
- Black Coffee
- Bridal Gripper
- Bry Pan (Frying Pan)
- Brachiolauncher
- Brachiobomber
- Brachiojaurus
- Germa techniques
So maaaaaybe it's Queen. I don't think it's Sanji either because it doesn't really fit into that motif as well, i.e. not french or some other language.
Edit: Or it could be Yamato because the SvQ fight is over and Oda did move on to her plot, but again her moves are all in Japanese like Zoro.