Curse of the Seven Oceans is a Rank A sword fused from Ocean Stone.
|Name||Curse of the Seven Oceans|
|Fused from 3||Maelstrom|
|Fusion Time||28 Hours|
|Attack Points (AP)||28|
|Defense Points (DP)||34|
|Sell Price (Sword Coins)||75,000|
In this manga, you see that in some unknown location., the sword is resting. As you approach it, it seems to "turn on", and activates a type of spell.
This shows to send either water or energy to a location where it awakens a bound(probably not for long) and sleeping(also not for long) golem of some type.