It is a large black sword with silver edges, a pair of small projections near the tip of the blade, and flowing white runes along the middle of the blade.
It is absolutely the most powerful sword in the game, outright doubling Attack and Magic Attack at max level, as well as granting Holy, Dark, and Dispel resistance. The trade-off is that both Accuracy and Evade are reduced by 10%, regardless of the sword's level.
Epic Battle Fantasy 4
Found on Battle Mountain, in a chest revealed after beating all four boss marathons and lighting the torches.
- As with many other weapons found on Battle Mountain, the Equilibrium metaphorically represents one of the bosses in the main game; in this case, Godcat.