- Cost to restore: 500 crystals
- Location: Shell
- Effect: The user gains an ATK boost of +300% in battle, but weapons have a 20% chance of breaking when attacking.
This sealstone is detrimental when set in a dais, as enemies are not affected by the weapon-breaking penalty. Holding it may be useful in a pinch (eg. a difficult Boss battle) if you have the means to replace your characters' weapons, as the attack boost is very significant. However, using it on a regular basis may prove costly, so you may not necessarily want to restore it, even though it is cheap. It is one of the three options (the others are Wrath of Bread Alone and Stone-Hurler Wrath) to solve a puzzle in the dungeon which requires you to hold a certain sealstone to open a passage sealed by a glyph. This sealstone is referred to in the instructions to the puzzle as "sword". You may choose to carry it for this purpose, but if you do not have the means to replace your characters' weapons, it would be a good idea to avoid combat.
- The name of the sealstone refers to the fact that the added force which makes attacks stronger also causes weapons to break more easily.
- The word "wrath" designates this sealstone as negative, but it behaves more like a neutral one (the ones with "law" in their name), in that it involves a tradeoff: both a beneficial and a detrimental effect. In this case, it may be classified as negative because the detrimental effect can be considered to outweigh the beneficial one. Stone-Hurler Wrath and Wrath of Bread Alone share this naming peculiarity.
- Wrath of Forcefulness, Stone-Hurler Wrath and Wrath of Bread Alone are also the only negative sealstones that benefit the enemies by being set on a dais.