- Cost to restore: 1,000 crystals
- Location: Held by enemy
- Effect: User's Darkness attacks deal 50% more (x1.5) damage, but Holy attacks deal half (x0.5) damage.
This sealstone could theoretically be useful to hold, but there are very few darkness-elemental attacks to exploit (Dark Savior and Energy Steal). There is no advantage to setting it on a dais, and it is too costly to restore simply to increase the dungeon's withdrawal limit, so it advisable to leave it in a shell.