- Cost to restore: 600 crystals
- Location: Dais
- Effect: The user's Lightning attacks deal 50% more (x1.5) damage, but Earth attacks deal half (x0.5) damage.
This sealstone could theoretically be useful to hold or restore, especially if you are planning an elemental build for Rufus, but few other characters would be able to benefit from it (only Lightning Sorcerers). It is already set in a dais when you first encounter it, thus helping to solve the dungeon's puzzle, but you can restore and replace it with a negative sealstone if you want to weaken the enemies, as it is cheap.