Shin Megami Tensei V: Vengeance - Shinagawa Wharf, Fairy Village, and Shinagawa Station Walkthrough

• First Phase: Force, Light
• Second Phase: Fire

Fion’s only weakness is Elec so it is recommended to have all of your demons be able to use Elec skills as much as possible. Inflicting blind on Fion or lowering his hit rate with Sukunda helps for this fight as well.

During Lahmu’s first phase, he will mostly attack with single-target skills. Focus on taking out the tentacles since you will not be able to damage his main body before doing so. Attack his tentacles with multi-target Light or Force. Afterwards, aim for his main body. Quetzalcoatl is recommended for the fight since he has access to both Force and Fire skills, making him useful against Lahmu’s first and second forms.

Lahmu will occasionally use Babylon’s Curse during his first phase which will restore his tentacles’ HP and inflict Mud on a target (taking away 1 of their turns). Because of this, switch out any party members who have been inflicted with Mud as soon as possible.

When Lahmu goes into his second phase, he will begin casting strong multi-target skills. Using debuffs becomes very important at this point so try to have demons with access to Sukunda, Tarunda, and Blinding Strike to mitigate or avoid as much damage as possible. You will also want a reliable healer to manage everyone’s HP so consider having Parvati with Media +4. Her being able to use Matarunda is also a bonus. Pummel Lahmu with Fire and Physical skills and he should go down eventually.