Cannon main has two great debuff skills and one of them is deep insight, which I use in the video. With a team of -def debuff, such as elementalist and guang mo, you can clear the mobs in this dungeon relatively easily. Ching ya also helps a lot since Cannon main relies on multi hit to deal great damage. Shen hong is not really necessary on eggs, but for the boss you might need her. This dungeon really shows the strengths of Cannon main, which is -defense debuff and long fights with preparation time. You can go to the budget route as shown in the video by using L Nemesis Cannon instead of L Jupiter's Cannon.
My attack buffs were the leftover of my merlin dungeon buffs because I ran OT 17 right after the new dungeon. Most of the time my buffs were around 387% and 402% for boss. I only had 492% on the first and second egg.