Tutorial/Miraculous Hydrograna

Naturally, a Hydro-abundant nation like Fontaine will have such mysterious phenomena as "Hydrograna." After you collect three Hydrograna, they will combine into a Hydro Core that will continuously apply Hydro to the surrounding environment.

Even if you have not yet collected three of them, characters can cause Hydrograna to grow into a Hydro Core if continuously affected by Hydro.