Get Used to Essence Fusion
Essence Fusion is one of the new mechanics introduced in Shin Megami Tensei V, and it gives you more freedom in the way you build your character, the Nahobino. As you play through the game, you can open chests and complete sub-quests to gain various demon Essences. You can also unlock them for purchase at Cadaver’s Hollow.
With an Essence, you can then go to the World of Shadows and access the Essence Fusion option via Apotheosis. From here, you can choose to either inherit skills or affinities for the Nahobino. Essence Fusion is also available to your demons, but you won’t be able to change their affinities.
This is especially important, as this is basically the primary way of teaching the Nahobino new skills. You don’t want to be stuck with that low-level Zio spell forever, do you? With Essences, he can inherit more powerful spells. It’s also a good idea to change up his affinities whenever you encounter a boss, just to make sure your weaknesses are covered. Each Essence can only be used once, so we recommend saving those affinity changes for boss battles.