This is kinda cheesy ngl. Summon Igon because you need to not get agro, but honestly summon Igon for Bayle fight is a must to do, he's the best NPC in Elden Ring!
Funny thing about Bayle is if you can fast enough to go to his back on certain move, his AI kinda broke or confuse and you will have huge time to land punish to him.
Level 148 Scadutree Blessing 10
Version 1.12.1