- Cost to restore: 600 crystals
- Location: Shell
- Effect: The user's Earth attacks deal 50% more (x1.5) damage, but Lightning attacks deal half (x0.5) damage.
This sealstone could theoretically be useful to hold, but there are very few earth-elemental attacks to exploit (Poison Blow, Earth Grave and Poison Shot). You could set it on a dais to help solve this dungeon's puzzle, but it will turn all the water poisonous, thus adding an unnecessary difficulty to your exploration. Since it is cheap, however, it can be restored to increase the withdrawal limit for the dungeon and thus allow you to retrieve another sealstone to use instead.